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更多“Many families have taught their children to place litter in the trash can ( ) this catchy phrase. ”相关问题
  • 第1题:

    John's father ______ mathematics in this school ever since he graduated from Harvard University.

    A、teaches

    B、has taught

    C、is teaching

    D、taught


    正确答案:B

  • 第2题:

    Examine the following options, Multicasting supports applications that communicate.()

    A. many - to - one

    B. one - to - one

    C. one - to - many

    D. many - to - many


    参考答案:C

  • 第3题:

    语义网络的基本语义关系包括()。

    A.实例关系(ISA)

    B.分类关系(AKO)

    C.成员关系(A-Member-of)

    D.属性关系(Have或者Can)


    C) 继承性

  • 第4题:

    —— ______they ______an English class?

    ——N0.they aren’t.

    A.Are;having

    B.Are;have

    C.D0;have

    D.Can;have


    正确答案:A
    通过答语N0,they aren’t来判断,问句应用现在进行时,答案为A。

  • 第5题:



    请在第_____处填上正确答案。

    A.couldn't
    B.must
    C.can't
    D.have

    答案:A
    解析:
    此句讲的是过去的事情,所以,用过去时,这里应用过去时的“能够”,couldn’t。以前,人们联络不方便,却都能准时赴约。

  • 第6题:

    设计不规则元件体时,通过什么操作实现?()

    A.Place-->line

    B.Place-->wire

    C.Place-->Bus

    D.Place-->Netlable


    A