问题 选择题
n名学生的身高分组整理后,在频数分布表中“165.5~170.5cm”这小组的频数是4,频率是0.10,而“155.5~160.5cm”这小组的频数是m,频率是0.20,则n和m依次是(   )
A.40和8
B.8和40
C.40和4
D.4和40
答案

答案:A

问答题

[背景资料]
某大型防洪工程由政府投资兴建。项目法人委托某招标代理公司代理施工招标。招标代理公司依据有关规定确定该项目采用公开招标方式招标,招标公告在当地政府规定的招标信息网上发布。招标文件中规定:投标担保可采用投标保证金或投标保函方式担保。评标方法采用经评审的最低技标价法。投标有效期为60天。
项目法人对招标代理公司提出以下要求:为避免潜在的投标人过多,项目招标公告只在本市日报上发布,且采用邀请方式招标。
项目施工招标信息发布后,共有9家投标人报名参加投标。项目法人认为报名单位多,为减少评标工作量,要求招标代理公司仅对报名单位的资质条件、业绩进行资格审查。开标后发生的事件如下:
事件一:A投标人的投标报价为8000万元,为最低报价,经评审推荐为中标候选人。
事件二:B投标人的投标报价为8300万元,在开标后又提交了一份补充说明,提出可以降价5%。
事件三:C投标人投标保函有效期为70天。
事件四:D投标人投标文件的投标涵盖有企业及其法定代表人的印章,但没有加盖项目负责人的印章。
事件五:E投标人与其他投标人组成联合体投标,附有各方资质证书,但没有联合体共同投标协议书。
事件六:F投标人的投标报价为8600万元,开标后谈判中提出估价为800万元的技术转让。
事件七:G投标人的投标报价最高,故G投标人在开标后第二天撤回了其投标文件。

G投标人的投标文件是否有效对其撤回投标文件的行为,项目法人可如何处理

完形填空

  If you do not use your arms or your legs for some time, they become weak. When you 1using them again, they 2become strong again. Everybody knows this and nobody would think of 3 this fact. 4 there are many people who do not 5 to know that memory works in the 6 way.

  7someone says that he has a good memory; he8 means that he 9 his memory by practising exercising it. When someone 10 says that his memory is poor, he actually means that he 11 give it enough chances to become 12 .Have you ever 13 that people who cannot read or write usually have 14 memories than those who can? This is 15 those who 16 read or write 17 remember things. They have to remember dates, places, names, songs and stories. So their memory is the whole time 18 .So 19 you want to have a good memory, you should learn from those people, 20 by remembering what you see, hear, feel and write. If so, you must have a good memory.

  1. A. begin       B. go on     C. stop        D. continue

  2. A. quickly     B. slowly     C. soon       D. at once

  3. A. doing      B. agreeing    C. questioning  D. answering

  4. A. Yet        B. Still       C. So         D. Certainly

  5. A. want       B. seem      C. get         D. hope

  6. A. other       B. usual      C. same        D. opposite

  7. A. As         B. What      C. While       D. When

  8. A. real        B. actually    C. true        D. then

  9. A. wants      B. builds up    C. makes      D. keeps

  10.A.again      B. else         C. more       D. once

  11.A.do not     B. is not        C. never       D. does not

  12.A.poor       B. weak        C. strong      D. healthy

  13.A.seen       B. heard of      C. noticed     D. thought of

  14.A.worse      B. better       C. more        D. less

  15.A.why        B. how       C. because      D. the reason

  16.A.used to     B. cannot      C. try to        D. have to

  17.A.will not     B. have to      C. refuse      D. cannot

  18.A.ready       B. being used   C. busy       D. training

  19.A.if          B. that        C. though      D. thus

20.A.please      B. try          C. train       D. enjoy