abc company is audited by the phoenix office of willingham cpas. which of the following iniduals would be least likely to be considered a "covered member" by the independence standard?
which of the following is not a broad category of threat to auditor independence?
a all cpa firm provides audit services to a large local company. almost eighty percent of the cpa firm's revenues come from this client. which statement is most likely to be true?
which of the following forms of advertising would most likely be considered not a violation of the professional code?
which of the following acts by a cpa would most likely be considered not a violation of the aicpa code of professional conduct?
an immaterial loan from the cpa to an officer of a client impairs the independence of the cpa.
if the independence of inidual cpa is impaird, the cpa firm's independence will also be impaired.
the review of a company's financial statements by a cpa firm
which of the following types of services is generally provided only by cpa firms?
which of the following has primary responsibility for the fairness of the representations made in the financial statements?
which of the following is an example of a compliance audit?
which of the following audit can be implemented by internal auditor?
operational audit includes audits of efficiency, effectiveness, and adequacy.
integrated audit refers that the auditor implement the audit of financial statement and internal control together.
attestation services include examination, review and agree-upon procedures.
review refers that an engagement designed to express ( ) assurance relating to subject matter or an assertion.
the professional staff of a typical national public accounting firm includes partners,senior auditors,( )and staff auditors.
financial statement audits performed under pcaob requirements are designed to provide which types of assurance with respect to the detection of material misstaements due to errors or fraud?
a basic objective of a cpa firm is to provide professional services that conform with professional standards. reasonable assurance of achieving this basic objective is provided through:
which of the following is not explicitly included in a standard report for a nonpublic company?
which of the following is not included in an integrated audit report on the financial statements of a public company?
which is the the responsibility of auditor?
the elements of quality control include?
key audit matters are those matters, in auditors' judgments, are of most significance in audit of financial statements.
aicpa issues standards applicable only to nonpublic accounting and auditing engagements.
the unqualified audit report should begin with "cpa's report" at the top.
the audit report indicates that management is responsible for the ( ) of the financial statements.
which of the following is not a financial statement assertion made by management?
which of the following business characteristics is not indicative of high inherent risk?
of the following, which is the least reliable type of audit evidence?
ytical procedures are most likely to dectect:
in developing an expectation for ytical procedures, the auditors are likely to consider:
audit risk can be controlled by the client
control risk is related to internal control
sales invoice is external evidence
audit evidence must be sufficient and appropriate.
when the management understate the revenue, it violate which management assertion? ( )
which statement is correct? ( )
which material misstatement risk does not belong to financial statement level risk? ( )
which of the following should not normally be included in the engagement letter for an audit?
the responsibilities of management include ( )
when auditors understand the client, the risk assesent procedures include ( )
material misstatement risk includes two levels, one is financial statement level, and the other leve is assertion level.
the auditors should obtain facts that might bear on the integrity of management from the predecessor auditors before accepting an audit engagement.
the materiality should not be used in the reporting stage of audit.
( ) risk can be controlled by auditors.
( ) risks require sepcial audit consideration.
1948年,瑞士化学家穆勒因发明合成了哪种农药而获得诺贝尔生理或医学奖,但是之后,该农药的大量应用却给生态环境造成沉重负担?
土壤的哪种特性,导致了污染过程的非线性及污染物的生物有效性的降低?
日本的米糠油时间是由____污染引起的?
环境化学是一门研究 在环境介质中的存在、化学特性、行为和效应及其控制的化学原理和方法的科学。
1928年英国细菌学家弗莱明发现了青霉素,青霉素属于 ?
环境化学的核心任务是研究化学污染物在环境介质中的 与 。
以下几种方法中,可用于提取土壤中不同形态重金属的方法包括:
环境化学式一门新型交叉学科,它的研究对象和研究目标分别为:
在水环境中,沉积物既是污染物的汇,也是污染物的源。
大气的四个圈层包括:对流层、平流层、中间层、热层
大气中的主要含氮污染物是nox,三分之二的人为源来自于____。
____分子强烈吸收波长在12~18 μm范围内的红外辐射,可造成温室效应,使近地面大气变暖。
当_____时,大气气团处于稳定状态。
在醛类中,____既是一次污染物,又是二次污染物,而且,几乎所有大气污染化学反应都有它的参与。
使大气污染物向各个方向扩散的因素是 。
大气中o3已知的唯一认为来源是 的光解。
我国对pm2.5的浓度限值标准为 。
大气颗粒物指空气动力学直径为0.003-100μm的固态粒子。
按照体积分数,大气的主要成分包括:氮气(n2)、氧气(o2)、氩气(ar)、氦气(he)
洛杉矶烟雾又称光化学烟雾,含氮氧化物和碳氢化物等一次污染物的大气,在阳光照射下发生光化学反应而产生二次污染物,这种由一次污染物和二次污染物的混合物所形成的烟雾污染现象。
n/p比值的大小可用来判断湖泊的富营养化状况,当n/p值___时,则认为属富营养状况。
计算天然水总含盐量时不包括下列哪种离子( )
水环境中,光量子产率可受___和___的影响。
以下哪些条件的改变会引起沉积物中重金属的释放?
双膜理论是经典的传质机理理论,假设气液两相间的传质阻力全部集中于界面两侧的停滞膜中,而在两相主体以及相界面处,传质阻力为零。
海水常量元素的恒比关系中,na 含量约为30%。
盐度是指1kg海水中碳酸盐全部转化成氧化物、有机质完全氧化后所含的固体物质的质量。
腐殖质是带负电的高分子弱电解质,根据在水中的溶解度不同分为富里酸、胡敏酸、腐黑物。
水体内氮磷比为20:1时,藻类最易爆发,造成水体富营养化。
已知po2 =0.21 ´105 pa; [h ] = 1.0´10-7 mol/l,利用nernst方程计算得天然表层水的pe值为16.58。(保留两位小数)
既能溶于稀酸又能溶于稀碱的土壤腐殖质是:
以下哪个选项能最好地表征高岭石的晶格类型( )
土壤溶液的作用包括:
土壤有机质吸附的双态模型指出,土壤吸附浓度是___和___的加和。
扩散双电层模型是指土壤内部微核形成正离子层,外部形成负离子层,合称双电层。
土壤阳离子价态越高,对重金属的吸附能力越强,同价态阳离子半径越大,吸附能力越弱。
土壤中的溶解态有机质使得重金属迁移性增强,植物更容易吸收。
无论土壤是否处于盐基饱和状态,其都具有活性酸度和潜性酸度。
在土壤胶体的离子交换吸附过程中,金属离子交换能力由大到小排序为fe3 >al3 >mg2 >na
四类最重要的原生矿物分别为氧化物类、硫化物类、磷酸盐类、硅酸盐类。
纳米颗粒污染物进入细胞的方式往往是
水生生物对水中难降解性物质的富集速率是生物对其 速率、 速率及生物体的生长所造成的稀释速率的总和
丙酮酸脱羧生成乙酰辅酶a,而后进入tca循环再经历 次脱羧
有毒有机污染物在生物体内转化第二阶段的反应主要是 反应
下列烃类降解的难易顺序正确的是 。(从易到难)
(多选)氧氧化中常见受氢体硝酸根可被还原为
污染物质在机体内的分布是指污染物质被吸收或形成其代谢转化物质,由血液转送至机体组织,与组织成分结合的过程。
生物放大或生物富集是属于生物积累的一种情况。
辅基同酶蛋白结合比较松散,辅酶与酶蛋白结合比较牢固。
脱氯和脱氯化氢是ddt降解的主要途径。
影响汞甲基化环境因素不包括:
持久性有机污染物的特性不包括:
毒物的三致性包括:
表面活性剂的种类包括:
下列属于急性毒性指标的是 。
汞的特点有 。
三价无机砷可以与蛋白质的巯基反应,促进酶的活性,是否正确?
单质砷无毒性,砷化合物均有毒性。
多环芳烃测试方法主要是利用液相色谱进行分离,荧光检测器进行检测。是否正确?
土壤ph上升,eh下降,可降低as的溶解性。是否正确?
以下哪种是属于原位生物修复技术()
在自然修复过程中,利用土著微生物的降解能力,需要一系列环境条件,包括:
外来物质被植物吸附到体内后,通常代谢过程经历哪些阶段:
微生物的活性除了除了受到营养盐的限制外,土壤中污染物氧化分解的最终电子供体的各类和浓度也极大地影响着污染物降解的速率和程度,是否正确?
亲电反应发生在分子中电子云密度低的位点,是否正确?
表面活性剂分子的特点是具有两性基团,能力显著增加接角界面的表面张力,降低污染物在水相的溶解性,是否正确?
垂直流人工湿地去除有机物和氨氮的能力强,但是稳定性较差,抗冲击负荷能力差。是否正确?
生物炭是生物质在氧气充足条件下,经相对低温(<700℃)热解产生的一类难溶的、稳定的、高度芳香化的、富含碳素的固态物质。是否正确?
可渗透反应格栅技术是在原位使用的技术。是否正确?
表面活性剂的分子特点是只含有憎水基团。是否正确?
一个成功的工业生态系统应该具有哪些关键特征:
超临界流体具有多种特性,包括:
在一个吸附过程中,物理吸附和化学吸附往往是孤立存在的。是否正确?
利用立体化学手性对映体的原理进行对称合成,可提高反应的选择性和原子的经济性,是否正确
利用立体化学手性对映体的原理进行对称合成,可提高反应的选择性和原子的经济性,是否正确?
分子印迹技术实际是制备具有分子识别能力的聚合物技术,是否正确?
凝聚是指由聚合物促成的聚集。是否正确?
电化学技术的特点是在不投加任何氧化剂的条件下氧化去除难降解有机物。是否正确?
湿式空气氧化是在高温高压下,利用氧化剂在气相中将有机污染物氧化为co2和h2o等无机物或小分子有机物的过程。是否正确?
臭氧是氧气的同素异形体。在常温常压下是一种不稳定、具有特殊性气味的无色气体。是否正确?
我国水体富营养化日趋严重的一个重要原因是
ppcps是一类与生活密切相关的____?
五氯酚是一种高效、价廉的广谱杀虫剂、防腐剂、除草剂,曾在血吸虫病流行区大量使用,用于杀灭___?
大气对流层中,高度每上升100 m,温度降低___℃
____空气稀薄,很少出现天气现象,飞行距离较长的商业客机多在该层巡航
____吸收紫外线造成温度上升,空气高度电离,因此也称为电离层
大气质量的99.9%集中在____km以下的范围内。
以下哪个公约或协定的目的是控制氟利昂替代物,应对全球气候变化?
如果分子在吸收光子之后,光物理过程和光化学过程均有发生,则所有初级过程量子产率之和必定___1。
___是城市大气中重要的吸光物质,在低层大气中可以吸收全部来自太阳的紫外线和部分可见光
降水的ph背景值为___?
虽然湿沉降可以有效去除大气中的颗粒物,然而,粒径在__mm左右的颗粒很难通过湿沉降去除。
雾霾是指含水量在___%之间的雾和霾的混合物
由clausius-clapeyron方程可知,温度升高(0-35℃)氧在水中的溶解度___
天然水体中,若某个单体系的含量比其他体系高得多,此时该单体系典韦几乎等于混合体系的pe,因此称之为_____。
氟氯烃cfc-113的分子式为
大气中对ho2自由基的产生贡献最多的途径是
大气中烯烃与臭氧主要发生
大气中ho自由基与烷烃反应的主要类型为
我国酸雨与国外酸雨成分相比,so42-/no3-比值是
下列哪种气体不属于温室气体
下列哪种气体不属于温室气体
下列哪种气体不属于温室气体
多环芳烃随苯环的增多,蒸汽压降低,并且最终以___形式存在
大气颗粒物的三模态中积聚模的粒径范围是
对于碳酸平衡,ph=8.5时,体系中的碳酸的主要形态是()
目前人们对于大气颗粒物的研究更侧重于pm2.5,其中pm2.5是指
下列那一种硬碱不能与fe3 结合形成配合物
关于天然水中腐殖酸的溶解性为
在ph=7时,nta以下列哪中形态存在
光化学烟雾是一个链反应,链引发反应主要是
我国酸雨中关键性离子组分的是
有一个垂直湖水,pe随湖的深度增加将
重金属从悬浮物或沉积物中重新释放属于二次污染问题, 可能诱发重金属释放。
在氨氮的测定中,氨与_____生产黄色的络合物,可在425nm波长下比色测定
测定总磷时,下例哪组物质均会产生干扰,是测定结果偏低
污染物能否通过血-脑屏障进入脑部取决于其
1953-1961年间在日本流行的水俣病是由哪种形态的汞引起的?
外来物质被植物吸附到体内后,通常代谢过程中不包括:
一个成功的工业生态系统不一定需要具有以下哪个特征:
以下哪些是天然水中的成分:
土壤污染物吸附研究中,粘土矿物是重要的吸附介质,粘土矿物包括:
以下哪些化合物可作为表面活性剂使用:
无机颗粒物的天然来源包括:
腐殖酸在重金属污染研究中的重要作用体现在
邱成才教授的研究结果表明,疏水性有机污染物在水相和土壤有机相间的分配具有以下特点
以下粒子中,哪些属于盐基离子
下列关于对流层的论述正确的包括:
下列关于环境化学研究的特点描述正确的是
关于伦敦型烟雾与洛杉矶型烟雾的区别,下列说法不正确者为
环境中多氯联苯的转化途径包括
天然水中有机物的转化途径包括:
水中有机物的光解作用过程包括:
下列物质对土壤的缓冲性能具有贡献的酸包括
甲烷发酵是指有机酸、醇等化合物在细菌作用下,被转化为___,进而经产甲烷菌作用产生甲烷
which one is the best?
what are the writing principles of business letter writing?
courtesy is one of the principles of business letter writing.
the principle of consideration means you should try to ____ yourself in his place.
english business correspondence refers to the____ , cables, telexes, faxes and e-mails dealing in international business.
which one of the following is the optional part of a business letter?
we hope to enter___ business relations ___ your firm.
date should be typed in full and abbreviated.
date should be typed in full .
the address in letterhead is the address of the ___.
e-mail is most commonly ____ way in international trade.
salutation in business letter is ___ from that in chinese or ordinary english letters.
there are ___ main layouts of the business letter.
which one is right?
a standard business letter includes 6 principle parts.
inside name and address is the receiver's name and address.
in business letter, the writing style of date usually includes american and british style.
the letter-head usually includes essential information about the writer.
the address in the letterhead is the address of the receiver
message is the part the writer expresses his idea or requirements.
in business letter, there are many ways of complementary close to show respect.
confidential 中文意思是机密件
express delivery中文意思是私人信件
the principle of completeness means to write all necessary information.
the subject line is usually the order or contract number to enable the receiver to be clear of the contents in the letter.
business correspondence has undergone significant changes in___ and style.
business letter is the ___ way in some communication ways.
courtesy means more ___ polite.
the contents of body will___ with the specific step of business.
the principle of concreteness means to make the message ___.
translation: 1. by airmail 2. express delivery 3. registered; recorded 4. urgent 5. confidential 6. personal 7. private
which one is the most direct way to find new customer?
before establishing the business relations with others, we should investigate the credit status of a company.
we can make credit inquiry through chambers of commerce at home and abroad.
there are many ____ through which we can seek new customers.
we should not only ___ our old customer but also seek new ones to enlarge our business.
we enclose our latest brochure ___ your reference.
if you want to establish new relations with others, what could you send them?
in order to give the new customer a good impression,we should write this kind of letter politely。
we should first tell the potential new customer our ___ of its information.
on the of ___ mr. smith, we know you are a state-owned company.
your name and address have been passed ___ to us by bank of china.
we’re writing ___ the hope of establishing business relations with you.
we’re a state-owned corporation, ___ both import and export of the textiles.
being ___ in the import of garments, we wish to establish business relations with you.
your early reply will be highly ___.
we wish to enter ___ business relations with your corporation.
we are in the market for chinese black tea.这个句子的翻译正确的是哪句
you may___ us at canton fair next month.
we are willing to establish business relations with you on the ___ of equality.
we very much regret our ___ to comply with your wishes.
we will send you a complete range of samples _________ your reply.
we are pleased to say that the article you required fall _____ our business scope.
we’re writing you for the ___ of business relations with you.
the goods you enquire for are ____ stock.
your early reply will be highly ___.
the credit status of a company includes its capability and credibility of performance.
enclosed please ___ a copy of our price-list for your reference.
we take the pleasure of introducing ourselves as an experienced importer____ line of daily products.
we can assure you ___ the best quality of our goods.
when was the first canton fair held in china?
which city is canton fair held in?
the price terms “fob” is abbreviated from “free on board”.
canton fair was set up in the autumn of 1957 in guangzhou as a chinese export commodities fair.
“canton fair” is named by premier ____in short.
in the following choices, which one is not correct about canton fair?
in the following choices, which one is the commonly adopted way of calculation to describe quantity of commodity?
in the following choices, which one is not included in the terms of price?
for the trading of wood and aquatic products, ____ is employed to indicate the quality.
until now, the number of exhibitors from home and abroad stands at nearly 25,000 in canton fair.
canton fair is working on encouraging the chinese all and medium sized enterprises to gain more chances.
the clause “name of commodity” is not the main component of description of goods.
canton fair attracts over 200,000 buyers from more than ___ countries and regions all over the world.
canton fair has being the most influential fair with its _______, the largest scale and most complete product varieties and the most buyers.
“exw” means _________in chinese.
f.a.q is the short name of __________.
___________include weight, number, length, area, volume and capacity.
in the following choices, which one is not correct to describe the quality of commodity?
in the following choices, which unit of calculation is used to describe quantity of commodity?
if the goods delivered by the seller are not in accordance with agreed name of commodity, the buyer reserves the right to lodge a claim, reject the goods or even cancel the contract.
in international trade, different countries should adopt the same system of weights and measures.
“gross for net” means _________in chinese.
chinese chestnuts are packed in gunny bags______ 50 kilograms each.
“abc london” is printed ____ the outer package.
it was found upon examination that nearly 20% of the package had been broken, obviously attributed to improper ______.
each beer bottle is packed in one carton_____ with hard foamed plastic padding and 100 cartons to a wooden case.
the packing must be reinforced and strong enough to ____ rough handling.
in the following choices, which one is correct to describe a price in the international trade?
in the following choices, which one is the component to combine a price in the international trade?
when we are offering a price in the correspondent, we should try to say it correctly.
c&f is the short name of __________.
the consignments will be shipped __________three lots.
partial shipment is not__________.
the goods will be trans-shipped __________the port of singapore .
the shipment was shipped on board this morning at the port of destination.
shipment is to be effected _________april 2018.
the three basic risks offered by picc are __________.
insurance is to be covered by the seller as the deal is on cif basis.
insurance is to be covered by the buyer as the deal is on cfr basis.
the buyer will cover the insurance since the deal is based on fob.
insurance is to be covered by the seller for 110% of the invoice value __________all risks and war risk.
we regret our ___ of accepting your payment terms.
as there is no direct steamer to your port, kindly please amend the _____ to allow transshipment.
l/c is the most widely accepted payment terms in international trade as it is based on bank credit.
we hope we can concluded the transaction ____ d/a basis.
payment is to be made ______ confirmed irrevocable l/c payable by draft at sight to be opened 30 days before the time of shipment.
we are sorry to say that your price is too high and ____ what we can afford.
____ your information, shipment can be ____ only in all quantities at the moment.
can you make us a firm offer ____ 3,000 metric tons ____ tin foil sheets?
folding chairs are packed in cartons _____ four pieces each.
beer bottles are packed 6_____a box.
the goods will be trans-shipped ______ hong kong and then delivered to london.
then what if we allow _______?
we have covered the insurance ______ all risks.
we very much regret our ___ ?to accept your request for advancing the time of shipment.
our s/c no. 2525 emphasizes that insurance is to be covered _____110% of the invoice value.
it's _____to open an l/c because we need to put a deposit in the bank.
payment______ l/c is our usual practice.
we'll agree to change the terms of payment from l/c at sight to d/p_____sight.
we are interested in _____no. xy777.
it is the buyer's responsibility to book the shipping space if the deal is based on fob.
the risk of the cargo is shifted to the buyer once the the goods is shipped on board under fob, cfr or cif terms.
insurance is to be covered by the buyer if the transaction is concluded on cfr or fob basis.
we are in receipt of your letter offering us the captioned goods ____ usd1, 000 per long ton fob shanghai.
we are prepared to place an order with you ____ 10,000 cases of tsingtao beer.
意欲购买的英文表达下列哪个是正确的?
they ___ us an inquiry ___ hisense brand color tv set.?
specific inquiry means a potential inquiry with a high probablity.
would you please quote us your favorable price ___ the above mentioned goods?
we are pleased to enclose a __ quotation sheet for adjustable wrenches
the catalogue lists all the products ___ detail.
we are in the market ___ the items illustrated in our catalogue.
there is likely to be enquiry or order ____men's shirts.
a growing demand can result ____ increased price.
___ reply, we would like to say that it is difficult for us to do business on your terms.
material of similar products is easily obtainable ___ a much lower price.
we acknowledge with thanks ____your fax of march 1.
to conclude this business, you need to lower your price at least ____5%.
if your prices are reasonable, we will plan to place orders ___you for the products.
we anticipate ___this transaction with you in the near future.
we are___ receipt ____ your letter of august 1 offering us the captioned goods _____us$100 per long ton.
we agree to the amendments of the contract ____requested in your letter of may 5.
we regret that your counter-offer is not acceptable ___us as the price we quoted is quite realistic.
the goods are available from stock _____prices as follows.
we thank you for your letter of march 12 and the _______catalogue.
while____ an enquiry, you ought to enquire into quality, specification and price etc.
there is a steady demand in europe _____ leather gloves ____ high quality.
please reply as soon as possible, ____the earliest shipment date and terms of payment.
for your information, our products enjoy a ready ____in europe.
we would recommend you _____this offer.
please let us _____ your firm offer before the end of this month.
we are not in a position to offer firm, as the goods are____.
our price is more attractive as _____that offered by suppliers elsewhere.
last year, this market was almost at its bottom, ____which our trade is now only recovering.
“we are making you an offer without engagement as follows.” this sentence means it is a firm offer.
“our quotations may change without notice.” this sentence means it is a firm offer.
“the offer is subject to prior sale.” this sentence means it is a non-firm offer.
“the above offer is without engagement.” this sentence means it is a non- firm offer.
we are _________hearing from you soon.
the ____brochure may help you to choose the best suitable types for your purpose.
the goods listed in the catalogue are _____at reasonable prices.
please ____ that the color of the whole lot is exactly same.
much to our regret, the goods are not available at present owing to ___demand.
the offer is firm, ______to our receipt of your reply within ten days.
outline the writing steps about counter offer.
our customer fund your goods quite____.
we confirm ____ a transaction with you for 100 tons.
proforma invoice which can do the same function as confirmation is also widely used in foreign trade.
a contract normally consists of the following three parts: the beginning, the body,and ___________.
enclosed please find the duplicate _____ our counter signature.
we are glad that we have an agreement on this matter_____
we _____ your terms satisfactory and now send you our order for 2 sets of electric motors.
a contract is an agreement, enforceable by law, _____ two parties mutually agree to carry out a trade_____ after negotiation or exchanges of correspondence.
purchase confirmation or sales confirmation, as short form contract, used mainly for trade of _____.
we reserve the right to cancel this order _____ the goods are in our hands at the end of june.
if the quality of your goods is ______, we will place a large order with you.
the name of sellers and buyers in the contract should be put in the close part.
we are sending you herewith the required proforma invoice ____ triplicate.
we have pleasure ____ sending you the attached order confirmation no.350.
we confirm e-mail exchanged resulting_____ the sale to you of 100 tons groundnuts.
you may rest assured that we will have the goods _____ by the end of next month.
we can deliver 50 tons from stock and the ____ in may.
the customers are in urgent____ of these goods and are pressing us for an early shipment.
as the only direct steamer that calls ____ our port once a month has just departed, the goods can only be shipped next month.
we invite your attention to the fact ____ the l/c covering your order no.112 has not reached us in spite of our repeated request.
we shall open the l/c ____ the bank of boston.
the process of issuing an l/c starts with the seller.
it is the usual practice that the l/c is to be established and to reach the seller one week prior to the date of shipment.
we are in possession of your letter of 25 june in which we note that you have established the l/c ___ our favor.
we shall book _______ on the first _______steamer.
shipping instructions are generally sent their shipping requirements by the sellers to buyers.
will you please inform us of the date of shipment and quantities you can supply ____ stock.
today we shipped the above consignment on board s.s. "nellore" which sails ____ your port tomorrow.
we shall book _______ on the first _______steamer.
we have shipped the replacement for all the items you have found______.
to resolve the dispute, a claim shall be subject to mutual agreement, which can promote world economic prosperity.
we file a claim ____ you for the short delivery of 145 pounds.
please send us by express mail the goods of inferior quality ____ our cost/expense.
we are pleased to inform you that we have restored production and can accept ___orders now.
we anticipate ___a trial order with you in the near future.
should you ____able to reduce your price by 2%, we could probably ____ an order with you.
we___think that we deserve some easier payment terms, i.e. document ___acceptance.
_____your opinion, it is in your interest to place your order right now.
as contracted, we will draw ___ you ____ the amount of the invoice.
we do not think we could ___another delay ____ your opening the l/c.
if your prices are found______, we intend to _____ a large order with you.
direct steamers to your port are few ____the winter season.
please try your best to ship our order _____ that steamer.
we expect ______ shipment next month.
we do not object to ______in cartons, provided they are secured by metal bands.
as arranged, we have effected insurance on the goods___110% of the invoice value against all risks.
our ___ of insurance is to be effected by the sellers on cif basis, london.
emphasis is to be laid on the fact that the subject contract is on cfr basis, whereas, your l/c calls ___cif.
it is our long-standing relations that we accept d/p?terms ____future dealings.
settlement has been reached through negotiations with the buyers ____ the following terms.
when unpacking the case, we found that goods did not ___ with the original sample.
owe....to 中文意思是以下哪一个选项
驻马来西亚大使馆的英文是:
欲购某商品的正确译文是哪一个?
we look forward to_____ your early reply.
we will establish business relations with you ___ the basis of mutual benefit.
“防水的”.....英文怎么说?
handle with care 是什么意思?
packing marks including ______
the goods are ____ in a plastic bag and then in a carton.
each carton is lined with plastic bag to prevent the goods _____ dampness.
there are ______ principle parts in a business letter.
salutation in business english letter is ______ from that in chinese letter.
we have ______ your information from canton fair.
we are glad to ________ relations with you.
please _____ us your favorable price.
we are in the _____ for your products.
with a iew to _____ our sales, we are glad to give you our best price.
what are the main channels to establish business relation?
credit inquiry includes the following contents:
an offer usually includes:
if the goods delvered by the seller are not in accordence with that in contract, the buyer reserve the right to reject the goods or lodge a claim, even cancel the contract.
clarity is one of the principles of business letter writing.
before establishing business relations with your customers, you shuold make a credut inquiry of new customers.
carton is not one of the commonly-used containers in internationa trade.
setting up business relations with your new customers is not the first step for trade.
clean ocean shipped on board bill of lading 意思是海运提单很干净
business negotiation includes 4 steps.
"courtesy" means mor than _____.
we can ____ our new customers from dofferent ways, such as bank, chamber of commerce, etc..
"your attitude" means _____ yourself in his place.
introducing company is very important, it can give your customer a _____ impression.
we look forwrad to ________ your eraly reply.
to conclude this business, you need to reduce your price ____ 5%.
the goods are ____ in a wooden case.
输出“hello world”
给定: int a,b; 以下哪些scanf的使用是正确的?
以下哪些是有效的变量名?
给定: int a,b; scanf("%d %d", &a, &b); 则以下哪些输入方式是正确的?
给定以下代码段: int a,b=0; 则a的初始值是0
写出下式的运算结果: 10/3.0*3 (如果认为结果是浮点数,请以小数点后一位小数来表示)
写出下式的运算结果: 10/3*3.0 (如果认为结果是浮点数,请以小数点后一位小数来表示)
写出以下代码执行后,t1和t2的值,以空格隔开: int a=14; int t1 = a ; int t2 = a;
写出以下表达式的结果,结果之间间隔一个空格: 6 5 / 4 - 2 2 2 * (2 * 2 - 2) % 2 / 3 10 9 * ((8 7) % 6) 5 * 4 % 3 * 2 3 1 2 (3 4) * ((5 * 6 % 7 / 8) - 9) * 10
以下语句是否可以通过编译: if ( 1<=n<=10 );
以下语句是否表示n属于[1,10]: if ( 1<=n<=10 );
写出程序的输出结果: int i,j,k; i=5; j=10; k=1; printf("%d", k>i
int i,j,k; i=2;j=3; k = i*j==6; printf("%d\n", k);
写出程序的输出结果: int i,j,k; i=3;j=2;k=1; printf("%d", i
写出程序的输出: int i=1; switch ( i%3 ) { case 0: printf("zero"); case 1: printf("one"); case 2: printf("two"); }
以下哪个循环和其他三条循环不等价(假设循环体都是一样的)?
while循环的条件满足的时候循环继续,而do-while的条件满足的时候循环就结束了
以下代码片段执行结束后,变量i的值是多少?int i =10; while ( i>0 ) { i /=2; }
以下代码片段执行结束后,变量i的值是多少?int i = 1; do { i = 5; } while (i<17);
以下代码段的输出是什么?for ( int i=10; i> 1; i /=2 ) { printf("%d ", i ); }
以下代码段的输出是: int sum = 0; for ( int i=0; i<10; i ) { if ( i%2 ) continue; sum = i; } printf("%d\n", sum);
以下代码段的输出是: int sum = 0; for ( int i=0; i<10; i ) { if ( i%2 ) break; sum = i; } printf("%d\n", sum);
以下哪句不是正确的函数原型?
以下哪个函数的定义是错误的?
对于不返回值而且只有一个int类型的参数的函数,以下哪些函数原型是正确的?
以下程序的输出是什么?void swap(int a, int b); int main() { int a = 5; int b = 6; swap(a,b); printf("%d-%d\n", a, b); return 0; } void swap(int a, int b) { int t = a; a = b; b = t; }
若有定义: int a[2][3]; 则以下选项中不越界的正确的访问有:
以下程序片段的输出结果是:int m[][3] = {1,4,7,2,5,8,3,6,9,}; int i,j,k=2; for ( i=0; i<3; i ) { printf("%d", m[k][i]); }
假设int类型变量占用4个字节,定义数组 int x[10] = {0,2,4}; 则x在内存中占据几个字节?
若有: int a[][3] = {{0},{1},{2}}; 则 a[1][2] 的值是?
对于: int a[] = {5, 15, 34, 54, 14, 2, 52, 72}; int *p = &a[5]; 则: p[-2]的值是?
如果: int a[] = ; int *p = a; 则以下哪些表达式的结果为真?
以下变量定义: int* p,q; 中,p和q都是指针。
对于: int a[] = {5, 15, 34, 54, 14, 2, 52, 72}; int *p = &a[1]; 则: p[2]的值是?
面网密度与面网间距的关系为:
下列关于空间格子中行列的说法错误的是:
关于晶体均一性的说法错误的是:
关于晶体异向性的说法错误的是:
关于晶体对称性的说法错误的是:
关于晶体和非晶体转化的说法错误的是:
下列生活中常见的物质,属于晶体的有:
下列关于空间格子中面网的说确的有:
空间格子的组成要素有:
目前,结晶学是矿物学的一门分支学科,其研究对象为天然的矿物晶体。
晶体具有自范性,因此晶体都具有规则的几何多面体形态。
晶体既有近程规律,也有远程规律,而非晶体只可能有近程规律。
准晶体的内部质点排列长程有序,但不能周期性平移重复。
平行六面体是实际晶体结构中的最小重复单位。
实际晶体结构中,相同的质点属于同一套相当点。
请例举至少5种身边常见或常用的晶体。
层生长理论不能解释的晶体生长现象有:
晶体的形成方式有:
晶面的发育与面网密度的关系是:
成核作用过程中,体系内各处的成核几率相等。
晶体生长均为层层向外平行推移进行。
骸晶的形成是由于晶面中心生长较慢而棱角生长较快。
投影球面上与赤平面垂直的小圆,在吴氏网上的投影结果是
基圆上的刻度可以度量:
极射赤平投影的投影面是投影球中的:
通过投影球中心的平面,投影结果不可能是:
关于球面坐标的说确的是:
晶面的极射赤平投影点:
投影球面上的圆形迹线,在吴氏网上的投影结果可以是:
吴氏网上可以度量极距角的要素是:
任何同种矿物的晶体,即使形态不同,其对应晶面之间的夹角也相等。
面角是晶面法线的夹角,而不是晶面的夹角。
晶面的投影是晶面法线的投影,而不是晶面本身的投影。
晶面的球面投影点仅反映晶面的空间方位,而与晶面的实际形态和大小无关。
在吴氏网上由两个晶面的投影点确定晶面夹角时,只有当这两个投影点位于同一个大圆弧(经线)时才能准确度量。
对称轴的基转角不可能是
关于具有对称心的晶体,说法错误的是
下列对称型中错误的是
对称型中对称面的数量不可能是
晶体对称的特点有哪些?
下列对称型中正确的有:
对称型 l33l2c 属于
对称型3l2c属于
对称型 3l24l3c 属于
如果在一个晶体上找到li6,可能还会找到
如果在晶体上找到一个l3,可能还会找到
有l3的晶体可能是
如果在一个晶体上找到li4,可能还会找到
对称型 l33l24p 属于三方晶系。
二次对称轴与垂直的对称面组合,产生一个对称中心。
一个四次旋转反伸轴与包含它的对称面组合,可以产生4个包含它的对称面。
一个六次旋转反伸轴与垂直它的二次轴组合,可以产生6个垂直它的二次轴。
晶体的对称性是由晶体的格子构造所决定的。
所有等轴晶系的晶体都具有4个l3
单斜晶系中,晶体常数特点为:
在对称型mm2中:
3/m 属于
等轴晶系国际符号第2序号位是
整数定律描述的是
(100)与(010)晶面相交所形成的晶棱是
晶体定向中,x轴和z轴之间的夹角是
从三方晶系晶面(11-20),还可以推导出的晶面有:
在对称型4/m 3 2/m中:
斜方晶系中
四方晶系中
四方晶系中的晶面
实际晶体形态上的晶面,其晶面指数都是简单整数。
某晶面在三个晶轴上的截距系数为2,2,1,则该晶面的米氏符号为(112)
晶面的米氏符号中三个晶面指数是该晶面在三个晶轴上的截距系数之比。
等轴晶系中,对称型国际符号的第一、第二、第三序号位的方向,分别对应于x轴、y轴、z轴的三个方向。
晶体定向后,x轴、y轴、z轴对应到内部晶体结构就是晶胞的三个方向的棱。
四方晶系中,x轴、y轴、z轴所对应的三个方向的行列的结构是相同的。
晶带定律是:晶体形态上的晶面都是按照晶带分布的。
晶体定向就是在晶体上建立一个直角坐标系。
等轴晶系中,x轴、y轴、z轴所对应的三个方向的行列的结构是相同的。
晶体定向时,单斜晶系应先确定y轴。
晶面在不同晶轴上的截距越大,相应的截距系数也越大。
所有相互平行的晶棱,具有相同的晶棱符号。
晶面指数为0,表示晶面与相应的晶轴平行。
晶棱指数为0,表示晶棱与相应的晶轴平行。
立方体的单形符号为
四方晶系的{100}单形是
斜方晶系的{100}单形是
等轴晶系的单形都是
每种对称型的一般形有
单斜晶系的{001}与z轴
下列可以相聚的单形是
下列可以相聚的单形是
下列可以相聚的单形是
mmm对称型中属于斜方柱的单形符号是
4/m2/m2/m对称型中,四方柱的单形符号可以是
结晶单形平行双面可以出现在
结晶单形三方柱可以出现在
等轴晶系中,{111}代表的单形可能是
晶体的理想形态中,同一单形中的晶面一定是同形等大的。
同形等大的晶面一定属于同一单形。
立方体与五角十二面体几何形态的对称型不同,所以不能相聚。
对32种对称型逐一推导出来的所有结晶单形中,有些几何形态是相同的。
正形和负形的关系是旋转180°的关系。
单形中的晶面可以用对称型中的对称要素操作而相互重合。
47种几何单形中,有些几何形态是相同的。
左形和右形的关系是旋转180°的关系。
一种对称型最多、但不一定都可以推导出7种结晶单形。
一个聚形中的单形的个数不会超过7个。
只考虑单形的形状,可以将146种结晶单形归纳为____种几何单形。
只考虑单形的形状,可以将____种结晶单形归纳为47种几何单形。
每一种对称型,单形晶面与对称要素之前的相对位置最多只可能有____种。
双晶的成因类型分为
条纹长石中,钾长石与钠长石条纹的关系是
按照单体间的接合方式,可将双晶分为:
双晶律要描述
双晶要素包括:
异种晶体的规则连生包括:
同种晶体的规则连生有:
平行连晶中各单体间的格子构造是连续的。
双晶中各单体间的格子构造是连续的。
双晶面可以平行于单晶体的对称面。
不同晶体之间的规则连生,一般要求晶体之间具有相似面网。
平行连晶的单晶体之间所有的晶面都互平行。
双晶中各单体之间的对应晶轴、晶面、晶棱都不平行。
4₁与4₂的关系为
14种空间格子中不存在
6₁螺旋轴的对称操作是
3₁、4₁、6₁均为
滑移面a表示
下列移距代表n滑移面的是
等轴晶系的布拉维格子有:
国际符号 p 4/m n m 表示
金红石空间群国际符号为 p 4₂/m n m,可以看出
关于等效点系说确的有
空间群 fd3m 表示
四方晶系底心格子可转变为四方晶系原始格子。
结点坐标1/2, 1/2, 1/2,表示该结点位于空间格子体心位置。
晶体结构中,与任一对称要素平行的同种对称要素有无数个。
将空间群国际符号中的微观对称要素替换为宏观对称要素就可得到点群符号。
同种质点只能占据一套等效点系。
不同种质点不能占据同一套等效点系。
选择平行六面体最重要的原则是保证棱之间的直角关系最多。
晶体结构中只可能出现____种不同形式的空间格子。
每一种对称型(点群)可以产生多个空间群,晶体中的32种对称型总共可以产生____种空间群。
n个球做等大球最紧密堆积,形成的八面体空隙数为
n个球做等大球最紧密堆积,形成的四面体空隙数
等大球体最紧密堆积方式中,每个球周围的球体个数为
石盐(halite)晶体结构中,na⁺的配位数和配位多面体分别为:
不同同质多像变体之间
2h石墨与3r石墨的关系是
多型是
晶体结构分析时,z数指的是
等大球最紧密堆积结构所形成的空隙有
等大球最紧密堆积原理适合描述
金红石(tio₂)晶体结构中的ti—o键既包含有离子键的成分又包含有部分共价键的成分,因此
下列矿物之间能形成类质同像系列的是:
下列矿物之间能形成同质多象的是:
不同多型之间
类质同像替换的类型有:
同质多象转变的类型有:
等大球体在二维平面内只有一种最紧密堆积方式。
立方和六方最紧密堆积方式中,球体的空间利用率是相同的。
共价晶格中,质点之间不能达到紧密堆积。
方解石(calcite) ca[co₃]中既有c-o共价键,也有ca-o离子键,是多键型晶格。因此既属于共价晶格,也属于离子晶格。
有序-无序结构是一种特殊的同质多像。
“2h石墨”中,“h”代表的是____。
“3r辉钼矿”中,“r”代表的是____。
下列可以相聚的单形是
下列关于空间格子中面网的说法错误的是:
关于晶体异向性的说法错误的是:
晶体对称的特点不包括
对称轴的最小基转角不可能是
(100)与(110)晶面相交所形成的晶棱是
等轴晶系国际符号第2序号位是
等轴晶系的单形都是
每种对称型的一般形有
双晶律不需要描述
条纹长石中,钾长石与钠长石条纹的关系是
按照单体间的接合方式,可将双晶分为:
等轴晶系中不存在的布拉维格子是:
6₂螺旋轴的对称操作是
关于等效点系说法错误的是
结晶单形{001}的形状不可能是
下列可以相聚的单形是
金红石(tio₂)晶体结构中,ti—o键既包含有离子键的成分又包含有部分共价键的成分。以下错误的是:
2h石墨与3r石墨的关系是
多型是
等大球体最紧密堆积方式中,每个球周围的球体个数为
可推导出正八面体{111}单形的对称型有
布拉维法则中,晶面的发育与面网密度的关系是:
下列对称型中正确的有:
下列生活中常见的物质,不属于晶体的有:
晶面的极射赤平投影点:
四方晶系中的晶面
结晶单形单面可以出现在
等轴晶系中,{111}代表的单形可能是
空间群 fd3m 表示
等大球最紧密堆积原理适合描述
实际晶体结构中,相同的质点不一定属于同一套相当点。
晶体具有自范性,因此晶体都具有规则的几何多面体形态。
某晶面在x、y、z轴上的截距分别为2、2、1,其晶面符号为(112)。
晶胞是空间格子中的最小重复单位。
任何同种矿物即使形态不同,对应晶面之间的夹角也相等。
晶面的球面投影点仅反映晶面的空间方位,与晶面的实际形态和大小无关。
lᵢ⁴与包含它的对称面组合,可产生4个包含它的对称面。
晶面在不同晶轴上的截距越大,相应的截距系数也越大。
晶体中所有相互平行的晶棱,具有相同的晶棱符号。
对所有对称型逐一推导出来的所有结晶单形中,有些几何形态是相同的。
双晶中各单体间的格子构造是连续的。
双晶中各单体之间对应的晶面、晶棱都不平行。
晶体结构中,与任一对称要素平行的同种对称要素有无数个。
选择平行六面体最重要的原则是保证棱之间的直角关系最多。
立方和六方最紧密堆积方式中,球体的空间利用率是相同的。
晶体中可能出现的对称型总共有____种。
每一种对称型中,单形晶面与对称要素之间的相对位置最多只可能有____种。
只考虑单形的形状,可将____种结晶单形归纳为47种几何单形。
晶体结构中只可能出现____种不同形式的空间格子。
每一种对称型(点群)可以产生多个空间群,晶体中的对称型总共可以产生____种空间群。
晶体中存在有____种独立的宏观对称要素。
六方晶系的晶体,晶体几何常数中的γ角是____度。
市场微观结构是一门用于研究和解释资产价格形成过程的学科。
一价定律是指具有相同特质的资产应该具有相同的价格。
波动性高的市场流动性必然欠缺。
金融学的三个方向是:资产定价、公司财务和市场微观结构
流动性可以被解释为能够以当前市场价格交易大量资产的能力。
的期货市场交易过程中遵循“价格优先,时间优先”的原则。
的股票市场交易过程中遵循“价格优先,时间优先”的原则。
在市场中扮演为客户传递订单的角色的是做市商。
在流动性较差的金融市场中,做市商可能会具有操纵市场的能力。
高频交易商数量过多的严重问题之一便是市场中虚幻的流动性增加,对传统交易商而言尤其如此。
如果监管不当,高频交易商有时会违背公平原则,进而损害其他低频投资者的利益。
高频交易商不会追涨杀跌。
在方向交易策略中,高频交易商会和基本面投资者一样预测价格走势,只是逻辑不同而已。
偏差交易策略是一种基于基本面分析的量化交易策略。
事件交易策略在宏观金融世界也可以运用。
做市交易策略的目的是为了给市场提供流动性。
全国最佳买卖报价(nbbo)指的是任何给定时间内每个证券在所有竞争市场中心上的最佳买价和最佳卖价。
闪电交易可能会导致虚幻流动性的产生。
幌骗交易套利空间的存在说明了市场参与者预期在价格形成的过程中扮演者重要角色。
交易所会对执行做市义务的高频做市商进行手续费返还。
冰山订单可以隐藏一部分投资者的交易意图。
幌骗交易是一种市场操纵行为。
高频交易可以在任何时刻为市场提供及时有效的流动性。
光大证券816事件表明高频交易系统不正确的使用会损害市场的有效性。
光大证券816事件说明股票市场流动性较差。
闪电中高频交易起到了助长助跌的作用。
对高频交易采取了放任自由的监管政策。
德国市场对高频交易的监管相对严格。
市场发展高频交易需要优先考虑风险管理的问题。
高频交易虽然有很多问题,但交易提速是大势所趋。
mifid提升了欧盟市场的效率。
regnms改变了股票市场的竞争格局。
衍生品目前还没有普及可互换性。
清算可互操作性会带来清算市场的竞争加剧。
股票市场的行情数据是逐笔数据。
期货市场的行情数据是切片数据。
交易量越大、流动性越好。
高频交易总是增加市场流动性。
高频交易总是降低市场波动率。
光大证券816事件说明股票市场流动性很好。
价格优先、时间优先的原则适用于的期货市场。
市场微观结构、资产定价和公司财务共同组成了金融学的三大方向。
限价单是不考虑价格的一种订单形式。
做市商自己不持有股票。
高频交易不会带来市场公平的问题。
闪电交易的关键是交易速度足够快。
闪电说明金融市场的基础已经发生了改变。
市价单不考虑价格。
mifid提升了了欧盟市场效率。
清算可互操作性会带来清算市场的竞争加剧。
市场对高频交易采取了自由放任的监管政策。
市场发展高频交易首先要做好风险管理。
德国市场对高频交易的监管较为严格。
闪电中高频交易起到了助长助跌的作用。
做市商每笔交易亏钱还能生存的原因是交易所有返佣。
偏差交易是没有风险的。
做市交易的目的是向市场提供流动性。
高频交易连接了分割的股票市场结构。
上海证券交易所买进的股票可以在深圳证券交易所卖出。
传统做市商已经被高频交易取代。
三价居中会提升市场效率。
高频交易有时会提供虚幻的流动性。
的一只股票可以在多个交易场所交易。
买卖价差是度量流动性的一个指标。
经纪商自己也会买卖股票。
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