填空题Libraries have been automating their back-end, behind-the-desk functions in consideration of cost and convenience.____

题目
填空题
Libraries have been automating their back-end, behind-the-desk functions in consideration of cost and convenience.____
相似考题

1.“He was smoking.” “Then he () .”A.ought to have been not smokingB.ought to have not been smokingC.ought not to have been smokingD.ought to not have been smoking

2.Never before in China ________ for the farmers.A.has so much been doneB.have so much been doneC.has been done so muchD.so much have been done

3.Medical scientists __________ finding a cure for cancer since 1960s.A. have been working outB. have been workingC. have been working onD. have been building on

4.This is the first time the students () to Hyde Park.A.have goneB.have been goneC.have been goingD.are being gone

参考答案和解析
正确答案： C
解析：
由题干信息可定位至C段。本句解释了图书馆是后台服务自动化的原因是为了节省开支和方便读者（for reasons of cost and convenience）。故匹配段落为C段。
更多“Libraries have been automating their back-end, behind-the-de”相关问题

  • 第1题：

    John told us that by the end of the year they _____ together for thirty years.

    A. would have been living

    B. would have lived

    C. would have been lived

    D. will have been living


    参考答案： A

  • 第2题：

    Every book except these two ( ).

    A、have sold

    B、have been sold

    C、has sold

    D、has been sold


    参考答案：D

  • 第3题：

    If only it ()so cold, perhaps I, too, ()more initiative.

    A、had been,have shown

    B、have been,would show

    C、had’t been,cound't have shown

    D、had't been,could have shown


    参考答案：D

  • 第4题：

    This is the first time the students ______ to Hyde Park.

    A、have been

    B、have been gone

    C、have been going

    D、are being gone


    正确答案:A

  • 第5题：

    The ship ______ on a low rock was broken in two by the waves．

    A.That had been driven

    B.Had been driven

    C.Have been driven

    D.Which to have been driven


    正确答案：A

  • 第6题：

    All that can be done．

    A.have been done
    B.have done
    C.has been done
    D.has done

    答案：C
    解析：

  • 第7题：

    They（）for hours.

    • A、have been driving
    • B、have been driven
    • C、drove
    • D、drive

    正确答案:A

  • 第8题：

    So far the construction of the two new bridges over the river （）.

    • A、have  been  completed
    • B、has  been  completed
    • C、has  completed
    • D、have  completed

    正确答案:B

  • 第9题：

    单选题
    John, how lazy you are! This work ______ three days ago.
    A

    should have done

    B

    must have been done

    C

    should have been done

    D

    might have done


    正确答案： B
    解析：
    句意：这份工作本该三天前完成的。should have done表示应该做而没有做，含有责怪之意。must have done意为“一定做了”，表示肯定的推测。

  • 第10题：

    单选题
    夹子用完了。（）
    A

    Clamps have been used up.

    B

    Lashing wires have been used up.

    C

    Twist locks have been used up.

    D

    Turnbuckles have been used up.


    正确答案： C
    解析： 暂无解析

  • 第11题：

    单选题
    While designing your database， you have created the EMPLOYEEStable as an index-organized （IOT）. You want to create a bitmap index on the JOD_IDcolumn to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）
    A

     A primary key must have been created.

    B

     A mapping table must have been created.

    C

     An overflow tablespace must have been specified.

    D

     The PCTTHRESHOLD option must have been specified.


    正确答案： D
    解析： 暂无解析

  • 第12题：

    单选题
    While several baseball teams have tried to supplant the Yankees as the dominant team in baseball, their inability has been unable to win even half as many World Series as the Yankees have won in the past one hundred years.
    A

    their inability has been unable

    B

    the inability they possess has not been able

    C

    having been unable

    D

    they were unable

    E

    they have been unable


    正确答案： A
    解析：
    A和B项改变了句子的意思。C项“having”的使用不恰当，且省去了必要的主语“they”。D项中的一般过去时“were”与后面的现在完成时“have won”的时态不一致。E项中使用“they”作主语，且动词都使用了现在完成时时态。

  • 第13题：

    Perhaps the experiment _____ by this time tomorrow.

    A、has been done

    B、will have been bone

    C、will do

    D、would have done


    参考答案：B

  • 第14题：

    John and I ______ friends for eight years. We first went to know each other at a Christmas party. But we ______ each other a couple of times before that.

    A had been; have seen

    B have been; have seen

    C had been; had seen

    D have been; had seen


    参考答案：D

  • 第15题：

    What you saw can' t have been an aeroplane. I' m convincedit____ a large bird.

    A.must be

    B.has been built

    C.must have been

    D.could have been


    参考答案：A

  • 第16题：

    His parents _______ the US for ten years.

    A、have been

    B、have gone to

    C、have been to

    D、have been in


    正确答案：D

  • 第17题：

    —There‘s been an earthquake.
    —I know.At least a hundred people________.

    A.were to be killed
    B.are said to have been killed
    C.said to have been killed
    D.are said to kill

    答案：B
    解析：

  • 第18题：

    While designing your database， you have created the EMPLOYEES table as an index/x7forganized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）

    • A、A primary key must have been created.
    • B、A mapping table must have been created.
    • C、An overflow tablespace must have been specified.
    • D、The PCTTHRESHOLD option must have been specified.

    正确答案:B

  • 第19题：

    Since 1991,the goals set in the plan（）

    • A、have been largely achieved
    • B、have largely not been achieved
    • C、have been achieved in some significant areas
    • D、have not been achieved at all

    正确答案:B

  • 第20题：

    While designing your database， you have created the EMPLOYEEStable as an index-organized （IOT）. You want to create a bitmap index on the JOD_IDcolumn to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）

    • A、 A primary key must have been created.
    • B、 A mapping table must have been created.
    • C、 An overflow tablespace must have been specified.
    • D、 The PCTTHRESHOLD option must have been specified.

    正确答案:B

  • 第21题：

    单选题
    I was on the highway when this car went past followed by a police car. They _____ at least 150 km an hour.
    A

    should have been going

    B

    must have been going

    C

    could have gone

    D

    would have gone


    正确答案： B
    解析：
    must have done表示有把握的肯定的推测，又因为是对过去某一时刻的推测，因此用过去完成进行时。句意为：当这辆车和紧随其后的警车经过时，我在高速路上。它们的时速至少是150公里。

  • 第22题：

    单选题
    While designing your database， you have created the EMPLOYEES table as an index/x7forganized table （IOT）. You want to create a bitmap index on the JOB_ID column to make queries faster. Which task must have been completed so that you are able to create the bitmap index？（）
    A

    A primary key must have been created.

    B

    A mapping table must have been created.

    C

    An overflow tablespace must have been specified.

    D

    The PCTTHRESHOLD option must have been specified.


    正确答案： B
    解析： 暂无解析

  • 第23题：

    单选题
    You （）him so closely; you should have kept your distance．
    A

    shouldn’tfollow

    B

    mustn’tfollow

    C

    couldn’t have been following

    D

    shouldn’t have been following


    正确答案： B
    解析： 暂无解析

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