外贸函电期末复习试题及答案
外贸函电期末复习试题及答案
1.We are sending you the samples C＿requested.
a.be
b.are
c.as
d.for
2.We trust that you will find our goods D＿.
a.attracting
b.to be attractive
c.attract your attention
d.attractive
3.The brochure covers ＿B wide range of products we deal in.
a.the
b.a
c.of
d.about
4.We would B＿very much if you send us some samples immediately.
a.thank
b.appreciate it
c.appreciate
d.appreciate you
5.We look forward to _A a trial order ．
A．receiving B. receive from you C．receipt D．receipt your 6．We _C some brochures to illustrate the products we manufacture ．
A．enclose, to you B．enclose, you C．enclose D．enclose, your
7. We s hall _D very much i f you will send us a catalogue by air.
A．appreciate B．appreciating C．appreciation D．appreciate it
8. We would like to take this _B to establish business relations with you.
A．step B．opportunity C．advantage D．opening
9. The shipment time is June or July at our _A and the goods will be shipped in one .
A．option ，lot B．option ，consignment C．choice shipment D．decision ，cargo 10．The first shipment of pens has turned out to be _B.
A．satisfy B．satisfied C．satisfaction D．satisfactory
11. In case the said goods are not available _A stock, please k eep us informed soon.
A．in B．by C．from D．out of
12. S hirts are packed _B carton and l0 cartons a strong seaworthy wooden case.
A．in ，in B in ，to C．to ，in D．to ，to
13. We cannot see any possibility of doing business, _A your price is too high.
A．as B．while C．thought D．that
14. W e are glad that we have _C an agreement on this matter.
A．come B．got C．reached D．arrived
15. I f any of the items is B＿to you,please let us know.
a.interest
b.interesting
c.interested
d.interests
16. O ur products enjoy B＿in word market.
a.most popular
b.great popularity
c.good seller
d.selling fast
可直接使用高职高考数学模拟试题(1).doc
一、选择题(本大题共15小题，每题只有一个正确答案，请将其序号填在答题卡 上，每小题5分，满分75分) 1、已知全集U ＝R ，M={x|x 21+≤,x ∈R}，N ＝{1,2,3,4}，则C U M ∩N= ( ) A. {4} B. {3,4} C. {2,3,4} D. {1,2,3,4} 2、“G ＝ab ±”是“a,G,b 成等比数列”的 ( ) A. 充分不必要条件 B. 必要不充分条件 C. 充要条件 D. 既不充分也不必要条件 3、函数y=)32(log 3-x 的定义域为区间 ( ) A. ),23(+∞ B. ),23 [+∞ C. ),2(+∞ D. ),2[+∞ 4、函数y=sin3xcos3x 是 ( ) A. 周期为3π的奇函数 B. 周期为3π 的偶函数 C. 周期为32π的奇函数 D. 周期为32π 的偶函数 5、已知平面向量与的夹角为90°,且＝(k,1)，＝(2,6)，则k 的值为 ( ) A. -31 B. 3 1 C. -3 D. 3 6、在等差数列{a n }中，若S 9=45，则a 5= ( ) A. 4 B. 5 C. 8 D. 10 7、已知抛物线y=mx 2的准线方程为y=-1，则m ＝ ( ) A. -4 B. 4 C. 41 D. -4 1 8、在△ABC 中，内角A 、B 所对的边分别是a 、b ，且bcosA=acosB ，则△ABC 是( ) A. 等腰三角形 B. 直角三角形 C. 等边三角形 D. 等腰直角三角形 9、过原点的直线与圆x 2+y 2+4x+3=0相切，若切点在第二象限，则该直线的方程是 ( ) A. y=x 3 B. y=-x 3 C. y=x 33 D. y=-x 3 3 10．下列命题中正确的是（ ） A ．平行于同一平面的两直线平行 B.垂直于同一直线的两直线平行 C.与同一平面所成的角相等的两直线平行D.垂直于同一平面的两直线平行 11、已知tan α=5，则sin α·cos α= ( )
2019年自考外贸函电考试重点自考小册子最新版
一、外贸函电的写作要领：completeness（完整）、concreteness（具体）、clarity（清楚）、 conciseness（简洁）、courtesy（礼貌）、consideration（体谅）以及correctness（正确）。 二、信息可以分为四大类：肯定信息（positive message）、中性信息（neutral message）、 否定信息（negative message，也称负面信息）和说服信息（persuasive message）. 三、布局可以分为平铺直叙法（Direct Plan or Approach）和曲折迂回法（Indirect Plan or Indirect Approach）。 四、书信的组成部分 （必备部分）（可选部分） 1.信头（The Heading） 8、事由( The Subject Heading Or Caption) 2.日期（Date Line） 9、经办人（Attention line） 3.封内地址（The Inside Address） 10、附件（The Enclosure）简写Encl. or Enc. 4.称呼（The Salutation） 11、抄送（Carbon Copy）简写C.C. 5.信的正文（The Body of the Letter） 12、再启（The Postscript）简写P.S. 6.结束语（The Complimentary Close） 7.签名（The Signature） 五、打信格式 1.缩行式：封内地址和其需要分行的地址的后一行，都比前一行缩进两格或三格；信的正 文，每一段的开始一行都缩进若干格（一般与称呼末一字母取齐）。 2.平头式：需要分段的地方，及每段的开始一行都与前一行取齐，一律不缩行。平头式各 段之间要用double space以示分段。 3.混合式：封内地址和称呼采用平头式（从左边的空白边缘打起），其他部分采用缩行式， 两种格式的混合采用所以称之为混合式。 八、撰写询函的理由通常包括： （1）获取信息（如价格和技术数据） （2）获得印刷品（如商品目录本、说明书、公司介绍等） （3）索取样品 （4）取得帮助（如得到特别允许，帮助或建议等）
外贸函电翻译参考答案修订稿
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Lesson 2 1. We avail ourselves of this opportunity to introduce to you as a foreign-invested corporation specializing in arts and crafts. 2. We want to acquaint ourselves with the supply position of steel products。 3 We are enclosing a cope of pricelist. have 28 distributors across the world. 5. We are one of the leading exporters of Chinese industrial products and are desirous of entering into business relations you. Lesson 3 are a dealer in Egypt.。 2. I have?2 years of?follow-up purchase orders and shipping experience 3. We have pictures of sports shoes selling well in UK. 4. We are sending some samples and brochures under separate cover for your reference. 5. We are interested in the electric appliance in your sample. Please kindly send your quotations to us. 6. We’d like to inform that you’ll find our new products are at Stand 16. Lesson 4 1. We are looking for a reliable supplier who can provide us the laptop. 2. I would like to buy computers and computer parts. Please send me a detailed pricelist with min. Order and shipping costs.
外贸函电期末试题
1.We have established an irrevocable letter of credit (in) your favor with Bank of China, Guangdong. 2.We are glad to enter (into) business relations with your corporation． 3.We are awaiting your revised draft (with) keen interest． 4.Our foreign trade policy is based (on) equality and mutual benefit． 5.We shall book a trial order with you, if goods are competitive (in) price and good (in) quality． 6.As we are heavily committed, we are sorry that we are not in a (position) to accept new orders. 7.We prefer payment by D/P (at) sight to D/P at 60 days． 8.Your quotation happens to be exactly the same (as) we have received from Australia． 9.We hereby register a claim (with) you for shortage． 10.Since we are well connected (with) the department stores here, we can obtain a number of orders for you. 11. You know this is a popular brand, which will sell (well) in your market. 12.We hope that you will look (into) the cause of the defective goods． 13.There is no question (about) getting the necessary import license from our authorities． 14.Please take the necessary steps (without) delay． 15.Your immediate reply should reach us not later (than) the end of this month． 16.If the first shipment is satisfactory, we can (place) with you some repeat orders． 17. We hope this unfortunate incident will not affect the friendly relations (with) us. 18.Please cable us as soon as (possible) , giving us all necessary information． 19.We acknowledge receipt of your letter of March 15, (which) reached us yesterday． 20. (In) view of the long-standing business relations with you, we wish to settle this dispute amicably． 21.We can cover All Risks and War Risk can be covered if the extra premium is borne (by) the buyer． 22.Please do everything necessary (so) as to enable us to send you the relevant documents at an early date． 23.We trust the above-mentioned shipment will reach you (in) sound condition． 24.As to chemical products we are well connected (with) the major producers in America．
自考外贸函电历年真题并附答案
2002 年4 月全国高教自考外贸函电试题 一、单项选择题(本大题共20 小题，每小题1 分，共20 分)在每小题列出的四个选项中只有 一个选项是符合题目要求的，请将正确选项前的字母填在题后的括号内。 1. Fifty cases of Green Tea you sent us were found to be badly damaged. This was apparently attributable to packing.( ) A. inferior B. superior C. faulty D. mistake 2. We trust you will do your best to have this matter right away.( ) A. settle B. to settle C. settling D. settled 3. By joint efforts we can both friendship and business.( ) A. increase B .promoted C .expand D. extend 4. We you for the special offer you send us.( ) A. thank B. appreciate C. be grateful D. beindebted 5. We are looking forward to your L/C for Order No 123.( ) A .receive B. receiveing C. be received D. be receiving 6. This is our best price, which we have concluded many orders with other buyers in your city.( ) A. on B. for C. by D. at 7. As it involves only a small , we hope you will have no difficulty on promotion.( ) A. quality B .figure C. quantity D. number
外贸函电翻译参考答案完整版
外贸函电翻译参考答案 HEN system office room 【HEN16H-HENS2AHENS8Q8-HENH1688】
Lesson 2 1. We avail ourselves of this opportunity to introduce to you as a foreign-invested corporation specializing in arts and crafts. 2. We want to acquaint ourselves with the supply position of steel products。 3 We are enclosing a cope of pricelist. have 28 distributors across the world. 5. We are one of the leading exporters of Chinese industrial products and are desirous of entering into business relations you. Lesson 3 are a dealer in Egypt.。 2. I have?2 years of?follow-up purchase orders and shipping experience 3. We have pictures of sports shoes selling well in UK. 4. We are sending some samples and brochures under separate cover for your reference. 5. We are interested in the electric appliance in your sample. Please kindly send your quotations to us. 6. We’d like to inform that you’ll find our new products are at Stand 16. Lesson 4 1. We are looking for a reliable supplier who can provide us the laptop.
2018年秋《外贸函电》期末考试复习题
2018年秋《外贸函电》期末考试复习题 一、单项选择题（本大题共40小题，每小题3分，共120分） 1. ________ and technology make one product less expensive for a nation to manufacture than another. A. Source B. Resources C. Money D. Cash 2. A ________ is a business with one owner. A. sole proprietorship B. partnership C. corporation D. joint venture 3. ________ means that the owner loses only the money he has put into the company and no more. He does not have to sell personal belongings. A. Limited liability B. Unlimited liability C. Partnership D. Corporation 4. Inc. (Incorporated) is especially used in the USA, and ________ continues to be used worldwide for private limited companies whose shares are not available. A. Cop B. Cor C. Ultd D. Ltd 5. PLC (Public Limited Company) is now often used t o show that the company’s shares can be bought by the ________. A. owner B. public C. shareholder D. beneficiary 6. Centralized management is exercised by a small number of people, the Board of Directors, which is headed by the Chairman (or, in the USA, the President) and decides the overall policy of the ________. A. society B. family C. firm D. world 7. Investment is freely transferable, which means one owner can sell his ownership interests to an ________ without a change in the nature of the business. A. investor B. person C. owner D. outsider 8. A good business letter usually contains ________ compulsory parts with some optional elements. A. two B. six C. ten D. one hundred 9. The more popular sequence of dating today is ________. A. date-month-year B. year-date-month C. month-year-date D. date-year-month 10. ________ is the direct addressing to the receiver of the letter and it is placed below the inside address to actually begin the letter, usually followed by a comma. A. Salutation B. Address C. Date D. Beginning 11. The letter body can be indented and ________. A. block B. blocked C. dented D. dent 12. I would like to draw your attention ________ our new detergent powders.
浙江7月高等教育自学考试外贸函电试题及答案解析
浙江省2018年7月高等教育自学考试 外贸函电试题 课程代码：00094 一、单项选择题(在每小题的四个备选答案中，选出一个正确答案，并将正确答案的序号填 在题干的括号内。每小题1分，共20分) 1. ( ) the delay on the part of the suppliers, we must ask you to extend the date of shipment from July 11th to August 12th. A. Owing to B. According to C. In order to D. So as to 2. The buyer made a bid ( ) $600 per ton for peanut meat. A. in B. at C. for D. with 3. So far we ( ) business relations with the firms in more than one hundred countries in the world. A. are established B. have established C. had established D. shall establish 4. ( ) the goods under Contract No.1986 are ready for shipment, please rush your L/C with the least possible delay. A. If B. Unless C. Although D. As 5. Under separate cover, we have already sent you samples of ( ) sizes of shoes. A. varying B. various C. variable D. variant 6. We shall be glad to send you the necessary information about our machine tools on ( ). A. reply B. order C. request D. call 7. We wish to ( ) that this is the best price we can quote, and therefore any counteroffer from you cannot be considered. A. point at B. point to C. point of D. point out 8. We find your price is rather on the high side. We wonder ( ) you can do better in the near future. A. if B. why C. what D. as 9. All the cases are strongly packed ____compliance _____ your request.( ) A. for...with B. in...with C. for...in D. in...for 10. Please ( ) that the letters of credit are established with the least possible delay. A. see to them B. see them C. see it D. see 11. Can you offer us machine tools with the following ( ). A. informations B. messages
国际商务英语函电答案.doc
国际商务英语函电答案【篇一：世纪商务英语外贸函电(第二版)课后习题答案】 letter 1.at, of, with, in, for letter 2.from, into, with, of, to p40 https://www.360docs.net/doc/7211739226.html,rming, interesting, dealing, sample, details, quality, prices, applied, items, inquiry unit 3 p55 letter 1.from, for, by, with, on letter 2.with, in, of, in, from p56 2.referring, established, cost, quality, opinion, responsibility, part, satisfied, information, decision unit 4 p71 letter 1. to, of, at, in, by letter 2.with, in, with, for, with p73 2.advertisement, leading, interested, details, dealers, line, market, replying, over, item unit 5 p88 letter 1.for, with, at, by, to letter 2.for, for, by, at, by/under p89 2.inquiring, quotation, receipt, subject, confirmation, discount, catalogue, brochure, separate, appreciate unit 6 p105 letter 1.of, on, in, with, to letter 2.of, in, by, for, at p106 2.offer, regret, price, sold, level, difference, transaction, counter-offer, samples, acceptance unit 7 p122 letter 1.to, of, of, in, for,
外贸函电期末复习试题及答案
外贸函电期末复习试题及答案 1.We are sending you the samples C＿requested. a.be b.are c.as d.for 2.We trust that you will find our goods D＿. a.attracting b.to be attractive c.attract your attention d.attractive 3.The brochure covers＿B wide range of products we deal in. a.the b.a c.of d.about 4.We would B＿very much if you send us some samples immediately. a.thank
b.appreciate it c.appreciate d.appreciate you 5．We look forward to_A__a trial order． A．receiving B.receive from you C．receipt D．receipt your 6．We_C__some brochures to illustrate the products we manufacture． A．enclose,to you B．enclose,you C．enclose D．enclose, your 7．We shall_D__very much if you will send us a catalogue by air. A．appreciate B．appreciating C．appreciation D．appreciate it 8．We would like to take this_B__to establish business relations with you. A．step B．opportunity C．advantage D．opening 9．The shipment time is June or July at our_A__and the goods will be shipped in one___. A．option，lot B．option，consignment C．choice shipment D．decision，cargo10．The first shipment of pens has turned out to be_B. A．satisfy B．satisfied C．satisfaction D．satisfactory
高职高考数学高考模拟考试题
高职高考数学高考模拟考试题 高职班高考模拟试题1 数学试题(A卷) 一、选择题:(每小题5分，共75分): ,1、数集{0}与空集的关系是( ) A. B. C. D. {0},,,,{0},?{0}{0},, 2、a=b是|a|=|b|的( ) A. 充分条件，也是必要条件 B. 充分条件，但非必要条件 C. 必要条件，但非充分条件 D. 非充分条件，也非必要条件 4x3、函数的值域是区间( ) yx,,(0)24，x A. B. C. D. (0,]，,[0,2][1,)，,[0,1] 2,14、函数的反函数( ) fxxxx()21 (1),,，,fx() 1，x1,x1,xx,1A. B. C. D. x5、如果则=( ) lg()lg(2)lg2lglg,xyxyxy,，，,，，y 1,1,12或 A. B. 2 C. 或2 D. 2 4tan,,,6、已知，且是第二象限的角，则=( ) sin,5 4343,, A. B. C. D. 3434 ,647、已知等差数列的和为,且,那么项数=( ) aaa,,,……aa，,,8m12mm,12 A. 10 B. 12 C. 14 D. 16 ,,,,ab//y,8、已知向量，，且，则( ) a,,(2,6)by,(3,) ,6,9 A. 1 B. 4 C. D. ,,,, 9、已知两点,，则向量的坐标为( ) ABA(1,2)B(1,3),
51[0,](1,),A. B. C. D. (2,1),(2,1),2210、已知某种细菌在培养过程中，每30分钟分裂一次(1个细菌分裂为2个细菌)， 则经过4小时候后，这种细菌由1个可繁殖成( )个 A. 256 B. 128 C. 64 D. 32 sincosaam，,sin2a11、已知，则=( ) 22221，m1,mm,1,,m1 A. B. C. D. 市县/区姓名考生号班级座位号 2xx,，,410ll和ll与12、如果直线的斜率恰好是方程的两个根，那么的夹角1212 是( ) ,,,,A. B. C. D. 3468 13、如果直线经过直线与直线的交点，xby，，,904320xy，，,56170xy,,, b,那么( ) A. 2 B. 3 C. 4 D. 5 2214、已知圆的标准方程为:，则此圆的参数方程为( ) (1)(2)9xy，，,, x,，19cos,x,,，19cos,,, A. B. ,,y,,，29siny,，29sin,,,, x,,，13cos,x,，13cos,,,C. D. ,,y,，23siny,,，23sin,,,, 2215、如果方程表示焦点在y轴上的椭圆，那么实数k的取值范围的区间xky，,2 是( ) A. B. C. D. (0,1)[0,]，,(1,)，,(0,2) 二、填空题:(每小题5分，共25分): 726，726,16、与的等比中项是 ,,,,17、若向量，则的值为 ab,,(4,3),(2,4)cos,,,ab
2019年10月自考外贸函电【考前必看】
自考外贸函电复习重点 1. bid 在国际贸易中，一般由卖方发盘或报盘，但有时，出于策略上的考虑，如卖方的商品供不应求，看涨，或是对当前的市场情况还不清楚，或是不知买方是否有诚意购买，常常要求买方先出盘，，以便集中对比，然后决定与谁成交。这种买方出的盘叫递盘（bid）。Bid也是一种报盘。 Bid 做名词时，常与动词make连用，基本结构是make ab a bid at a price for sth.。They made a bid at US$2，500 for Walnut-meat.他们对核桃仁曾按单价2，500美元递价。 Bid做动词用的常用句型为bid a price for sth. Last week we bid US$…… per metric ton for Green Tea.上星期我们对绿茶递价每公吨……美元。 另外bid也可做“投标”解。 2. 重要表达式 （1）to make you firm offers for both Groundnuts and Walnut meat CFR Copenhagen报花生和核桃仁两货CFR哥本哈根实盘 （2）Hand-picked，Shelled and Ungraded Groundnuts 手拣去壳不分级花生 （3）European Main Port 欧洲主要口岸 （4）This offer is firm，subject to your reply reaching us within one week此确盘一周内复到有效 （5）the best price we can quote这是我们能报的最好价 （6）As regards walnut meat关于核桃仁 （7）to be under offer elsewhere已向别处报盘 （8）to make us an acceptable bid给一个合适的（可接受的）递盘 （9）there has been a large demand for the above commodities对上述两商品的需求甚殷 （10）result in increased price结果导致价格上涨 （11）avail yourselves of the advantage of this strengthening market 可以得到这方面的好处。 （12）to be well connected with major dealers in the line of textiles与主要纺织品经营商有良好联系 （13）to be of good quality and competitive in price品质优良，价格又有竞争性 （14）best firm offer最优惠实盘 （15）to rush us samples by airmail立即以航邮将样品寄来 （16）If your shirts agree with the taste of our market，we feel confident of placing a trial order with you. 如你方的衬衫符合我地市场需要，我们有信心向你方试订 （17）By 100% confirmed，irrevocable letter of credit 100％保兑的、不可撤销的信用证（18）in our favour 以我方为受益人 （19）by draft at sight凭即期汇票支付 （20）to reach the sellers one month before shipment 在装运前一个月开到卖方 （21）remain valid for negotiation in China till the 15th day after shipment装船后15天内在中国议付有效
自考外贸函电历年真题 并附答案
2002年4月全国高教自考外贸函电试题 一、单项选择题(本大题共20小题，每小题1分，共20分)在每小题列出的四个选项中只有一个选项是符合题目要求的，请将正确选项前的字母填在题后的括号内。 1. Fifty cases of Green Tea you sent us were found to be badly damaged. This was apparently attributable to _____ packing.( ) A. inferior B. superior C. faulty D. mistake 2. We trust you will do your best to have this matter _____ right away.( ) A. settle B. to settle C. settling D. settled 3. By joint efforts we can _____ both friendship and business.( ) A. increase B .promoted C .expand D. extend 4. We _____ you for the special offer you send us.( ) A. thank B. appreciate C. be grateful D. beindebted 5. We are looking forward to _____ your L/C for Order No 123.( ) A .receive B. receiveing C. be received D. be receiving 6. This is our best price, _____ which we have concluded many orders with other buyers in your city.( ) A. on B. for C. by D. at 7. As it involves only a small _____, we hope you will have no difficulty on promotion.( ) A. quality B .figure C. quantity D. number 8.Our payment terms(付款方式)are _____, irrevocable letter of credit for the full invoice value.( )
外贸函电考试改革方案shanghai forever
《外贸函电》考试改革方案 一、课程特征 该课程的目的是教会学生实际业务处理能力，包括业务能力、思维模式和表达能力。传统笔试考试方式和题目（选择题、填空题等）难以考察学生的知识和技能，也容易作弊。学生考试的目的是为了分数而不是为了知识和技能。 二、改革目标 考试目的是为了促进学生学习，使得考试本身也成为一种教学手段和学习过程而不仅仅是学习的终止。 三、考试方法： 1. 学生用两周时间完成一笔交易的结算单据制作，制作过程可以向老师咨询 请教。 2. 学生提交全套结汇单据纸质版和电子版。 四、评分标准 1. 单据完整性：50%（缺一份扣10分） 2. 单据正确性：50%（出现原则性错误一处扣2分） 五、优点； 1. 准备过程即为学习提高过程； 2. 无法作弊； 3. 准备过程中，学生之间会互相讨论，树立团队意识，提高团队协作能力； 4. 考试题目都是主观题目，有利于训练学生的创造里、想象力和解决问题的能力； 5. 题目贴近实际业务，有利于应用技术型人才的培养。
六、考试试题 实操报告——制作结汇单据 学生姓名：班级： 实操项目名称：制作信用证项下的议付单据 任务描述：请你根据信用证和有关资料缮制结汇单据，具体任务是：任务1：翻译信用证的46和47A，你的译文如下：
任务2：列出信用证需要的单据清单及其要求： 1. 2. 3. 4. 5. 6. 7. 8. 任务3：逐一制作上述单据，每种单据单独做成一份文件。 然后把所有单据连同本报告装入一个文件夹，打包压缩后发送到阳光老师邮箱，文件夹名为“结汇单据+你的姓名”。
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2018广东省高职高考数学试题有答案
2018年广东省普通高校高职考试 数学试题 、选择题（共15小题，每题5分，共75 分） 1、(2018)已知集合 A 0,1,2,4,5 , B 0,2，则 Al 2. （2018）函数 f 3 4x 的定义域是（ 3. （2018）下列等式正确的是（ 6. （2018）抛物线y 2 4x 的准线方程是（ B 、x 1 C > y 1 D 、y 1 A. 1 B. 0,2 C. 3,4,5 D. 0,1,2 A 、lg5 lg3 Ig 2 B 、lg5 lg3 lg8 C 、 lg5 lg10 lg5 D > Ig — = 2 100 4.（ 2018 ）指数函数 的图像大致是（ 5. （2018） “ x 3 ”是 A 、必要非充分条件 C 、充分必要条件 x 2 9 ”的（ ） B 、充分非必要条件 D 、非充分非必要条件 C D
、,6, C 90，则（ ） tan A \ 2 D 、 cos(A B) 1 （ ） C 、 2 (1 2n 1) D 、 2 (1 2n ) uuu ，则BC （ ） 10. （2018）现有3000棵树，其中400棵松树，现在提取150做样本，其中抽取松树 做样本的有（ ）棵 A 、15 B 、20 C 、25 D 、30 x 3, x 0 … 11. （2018 f x 2 ，则f f 2 ( ) x 1,x 0 A 、1 B 、0 C 、 1 D 、 2 12. （2018） 一个硬币抛两次, 至少一次是正面的概率是（ ） " 1 1 2 _ 3 A 、丄 B 、丄 C 、一 D 、- 3 2 3 4 13. （2018） 已知点A 1,4 ,B 5,2，则AB 的垂直平分线是 ( ) A 、 3x y 3 0 B 、 3x y 9 0 C 、3x y 10 0 D 、3x y 8 0 14. （2018） 已知数列 a n 为等比数列， 前n 项和S n 3n 1 a ，则 a （ A 、 6 B 、 3 C 、0 D 、3 15. （2018）设f x 是定义在 R 上的奇函数，且对于任意实数 x ，有 f x 4 若f 1 3，则f 4 5 （ ） C 、4 A 、 sin A 2 B 、coA= .6 C 、 3 1 1 1 1 1 8.(2018)1 2 L n 1 2 22 23 24 A 、 2 (1 2 n ) B 、2 (1 21n ) uun 9.（2018）若向量 AB uuur 1,2 , AC 3,4 7. (2018)已知 ABC , BC 、、3, AC A 、 4,6 B 、 2, 2 C 、 1,3 D 、 2,2