The representative samples were ( )at random.A. being drawn B. drawing C. drawn D. draw

题目
The representative samples were ( )at random.

A. being drawn B. drawing C. drawn D. draw

相似考题

1.According to Paragraph 4, the stress women confront tends to be[A] domestic and temporary.[B] irregular and violent.[C] durable and frequent.[D] trivial and random.

2.According to Paragraph 4, the stress women confront tends to beA．domestic and temporary.B．irregular and violent.C．durable and frequent.D．trivial and random.

3.He sometimes employs students to () samples of their products.A.distributingB.distributeC.have been distributedD.to distribute

4.［A］ part ［B］ representative ［C］ judgement ［D］ symbol

更多“The representative samples were ( )at random. ”相关问题

  • 第1题：

    After having seen the()and samples, Jenny makes the specific inquiry.

    A、 category

    B、 catalogue

    C、 calculation


    参考答案：B

  • 第2题：

    Your samples should give us some idea of the colors and quality () the products

    A、for

    B、with

    C、on

    D、of


    参考答案：D

  • 第3题：

    prepare samples(英译汉)


    正确答案：准备样品

  • 第4题：

    请在（12）处填上最佳答案。

    [A] categories

    [B] examples

    [C] patterns

    [D] samples


    正确答案：D

  • 第5题：

    多因素方差分析应选择的操作菜单是（）

    • A、Analyze→General Linear Model→Univariate
    • B、Analyze→Compare  Means→One-Samples  T  Test
    • C、Analyze→Compare  Means→Independent-Samples  T  Test
    • D、Analyze→Compare  Means→One-Way  ANOVA

    正确答案:D

  • 第6题：

    We are sending you the samples（）requested．

    • A、be
    • B、are
    • C、as
    • D、for

    正确答案:C

  • 第7题：

    单选题
    What stanza file does a system administrator view to determine what kernel-tuning parameter changes were made when the system was last booted？（）
    A

    /etc/rc.net

    B

    /etc/tunables/tuning

    C

    /etc/tunables/lastboot

    D

    /usr/samples/kernel/nextboot


    正确答案： C
    解析： 暂无解析

  • 第8题：

    单选题
    PowerPoint提供的演示文稿设计模板放在（）。
    A

    Microsoft Office/Samples/演示文稿设计

    B

    Microsoft Office/Templates/演示文稿

    C

    Microsoft Office/Templates/Presentation Designs

    D

    Microsoft Office/Samples/演示文稿


    正确答案： C
    解析： 暂无解析

  • 第9题：

    单选题
    The representative of the committee was asked to verify his earlier statement.
    A

    confirm

    B

    withdraw

    C

    repeat

    D

    modify


    正确答案： B
    解析：
    句意：要求委员会的代表证实他以前的发言。confirm证实；确定。verify核实；查证。withdraw收回，撤回。repeat重复。modify修改；修饰。

  • 第10题：

    单选题
    The representative of the company demanded that part of the agreement ______ revised.
    A

    will be

    B

    is

    C

    to be

    D

    be


    正确答案： A
    解析：
    虚拟语气。由表示愿望、建议、请求和命令等意义的动词作谓语引导宾语从句时，从句谓语为should+动词原形，其中should常常被省略。常用的这种动词有：demand, request, suggest, command, order, desire, require, maintain, insist, request, intend, advise, decide等。由于本题从句是被动句，动词是be，用动词原型，因此答案为D。句意：公司代表要求修改协议的那部分内容。

  • 第11题：

    单选题
    Hoses used for cargo transfer operations must be tested abdinspected at specified intervals by （）.
    A

    a representative of the Captain of the Port

    B

    the operator of the vessel or facility

    C

    a representative of the National Cargo Bureau

    D

    a representative of the American Bureau of Shipping


    正确答案： D
    解析： 暂无解析

  • 第12题：

    名词解释题
    代表性样本（representative sample）

    正确答案： 在与研究有关的特征方面，样本与总体一致（误差允许范围内）。
    解析： 暂无解析

  • 第13题：

    听力原文：The foreign banks should have set up a representative office in China two years before they can apply for a branch.

    (2)

    A．The foreign banks should have set up a representative office.

    B．The foreign banks can't apply for a branch.

    C．The foreign banks can't expand business in China.

    D．The foreign banks are forbidden to set up a representative office.


    正确答案：A
    解析：单句意思为“外国银行若要申请在中国建立分行，那他们应该提前两年在中国设立办事处。”

  • 第14题：

    PowerPoint2003提供的演示文稿设计模板的位置在( )

    A: Microsoft Office Samples演示文稿设计

    B: Microsoft Office Templates演示文稿

    C: Microsoft Office Samples演示文稿

    D: Microsoft Office Templates Presentation Designs


    正确答案: D

  • 第15题：

    有以下程序： #include<iostream> usingnamespacestd； classsample { private： intX； public： sample(inta) { X=a： } frienddoublesquare(samples)； }； doublesquare(samples) { returnS．x*S．X： } intmain（） { samples1(20)，s2(30)； cout<<square(s2)<<endl； return0； } 执行结果是（ ）。

    A.20

    B.30

    C.900

    D.400


    正确答案：C
    C。【解析】本题考查友元函数的应用。程序中函数square是类sample的一个友元函数，它可以直接访问类sample的所有成员。它的功能是返回类sample的私有数据成员x的平方。所以程序的执行结果是900。

  • 第16题：

    根据下面资料，回答题
    I′ve often wondered how exactly sleep, or lack of it, can have such an awful effect on our bodies and, guess what, how much we sleep switches good genes on and bad genes off.
    In the first half of 2013, the Sleep Research Centre at the University of Surrey found a direct link between hours spent sleeping and genes. Every cell in our bodies carries genetic instructions in our DNA that act as a kind of operating handbook. However, each cell only "reads" the part of this handbook it needs at any given moment.
    Can sleep affect how a gene reads instructions It′s a question asked by Professor Derk-Jan Dijk at the University of Surrey. He set up an experiment and asked his volunteers to spend a week sleeping around seven and a half hours to eight hours a night and the next sleeping six and a half to seven hours.
    Blood samples were taken each week to compare which genes in blood cells were being used during the long and short nights. The results were rather surprising. Several hundred genes changed in the amount they were being used, including some that are linked to heart disease, cancer, and Type 2 diabetes. Genes to do with cell repair and replacement were used much less.
    Sleep restriction (six and a half to seven hours a night) changed 380 genes. Of these,220 genes were down regulated (their power was reduced), while 160 were up regulated (their power was increased). Those affected included body-clock genes which are linked to diabetes. One of the most downgraded genes is that which has a role in controlling insulin and is linked to diabetes and insomnia. The most upgraded gene is linked to heart disease.
    So changing sleep by tiny amounts can upgrade or downgrade genes that can influence our health and the diseases we suffer from when we sleep too little.
    The important message is that getting close to eight hours of sleep a night can make a dramatic difference to our health in just a few days through the way it looks after our genes.

    What can we learn about Professor Derk-Jan Dijk′ s experiment 查看材料

    A.The experiment was carried out to find the answer to how genes affect sleep.
    B.The experiment took a period of more than two weeks to reach a conclusion.
    C.His volunteers were divided into two groups with two different sleeping patterns.
    D.Blood samples of the volunteers were checked afterwards to decide how many genes changed in sleeping.

    答案：B
    解析：
    推断题。定位于第三段和第四段。根据第三段的第一句话“Can sleep affect how a gene reads instructions ”可知Derk-Jan Dijk教授的实验是为了发现睡眠对人体基因变化的影响．而不是基因影响睡眠，故A项不正确。根据第三段的最后一句话“He set up an experiment and asked his volunteers to spend a week sleeping around seven and a half hours to eight hours a night and the next sleeping six and a half to seven hours．”可知，他并没有将志愿者进行分组，而是要求他们第一周每晚睡七个半到八个小时，第二周将睡眠时间调整为六个半到七个小时，故C项不正确。再结合第四段的前两句话，他将志愿者这两周的血液样本进行比对，观察基因运作情况的不同．实验结果令人大吃一惊。由此可推断出，这个实验进行了两周多才得出结论，故B项正确，D项不正确，采集血液样品是为了比较在不同睡眠时长下所用到的基因的不同，而不是多少基因被改变。

  • 第17题：

    What stanza file does a system administrator view to determine what kernel-tuning parameter changes were made when the system was last booted？（）

    • A、/etc/rc.net
    • B、/etc/tunables/tuning
    • C、/etc/tunables/lastboot
    • D、/usr/samples/kernel/nextboot

    正确答案:C

  • 第18题：

    代表性样本（representative sample）


    正确答案: 在与研究有关的特征方面，样本与总体一致（误差允许范围内）。

  • 第19题：

    单选题
    单因素方差分析应选择的操作菜单是（）
    A

    Analyze→Compare  Means→Means

    B

    Analyze→Compare  Means→One-Samples  T  Test

    C

    Analyze→Compare  Means→Independent-Samples  T  Test

    D

    Analyze→Compare  Means→One-Way  ANOVA


    正确答案： C
    解析： 暂无解析

  • 第20题：

    单选题
    两个独立样本t检验应当选择的操作菜单是（）
    A

    Analyze→Compare  Means→Means

    B

    Analyze→Compare  Means→One-Samples  T  Test

    C

    Analyze→Compare  Means→Independent-Samples  T  Test

    D

    Analyze→Compare  Means→Paired-Samples  T  Test


    正确答案： B
    解析： 暂无解析

  • 第21题：

    单选题
    We are sending you the samples（）requested．
    A

    be

    B

    are

    C

    as

    D

    for


    正确答案： C
    解析： 暂无解析

  • 第22题：

    单选题
    Hoses used for cargo transfer operations must be tested and inspected at specified intervals by（）.
    A

    a representative of the Captain of the Port

    B

    the operator of the vessel or facility

    C

    a representative of the National Cargo Bureau

    D

    low inert gas temperature


    正确答案： D
    解析： 暂无解析

  • 第23题：

    问答题
    A typist types four envelopes and four letters. She places the letters in the envelopes at random. What are the chances that only three letters are in their correct envelopes?

    正确答案： zero
    解析：
    如果三个都装对了，那么第四个也一定装对了，所以没有这种几率。

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