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更多“We ________ many European ports every yearA.call atB.call forC.call onD.call in ”相关问题
  • 第1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2题:

    Refertotheexhibit.WhichinterfaceorinterfacesonswitchSW_Acanhavetheportsecurityfeatureenabled?()

    A.Ports0/1and0/2

    B.Thetrunkport0/22andtheEtherChannelports

    C.Ports0/1,0/2and0/3

    D.Ports0/1,0/2,0/3,thetrunkport0/22andtheEtherChannelports

    E.Port0/1

    F.Ports0/1,0/2,0/3andthetrunkport0/22


    参考答案:C

  • 第3题:

    He is neither __________European, nor __________ American. He is from__________Australia.

    A.a; a; /
    B.a; an; the
    C.a; an; /
    D.an; an; /

    答案:C
    解析:
    考查冠词用法。European虽是以元音字母开头,但是E不发音,其发音开头是/ju/,所以前面用不定冠词a,表示“一个欧洲人”;American以元音开头,前面用不定冠词an,表示“一个美国人”:第三个空指他来自澳大利亚。前面不用冠词。故选C。

  • 第4题:

    By default, how often does a router running IGRP send its complete routing table to its neighbors?()

    A. Every 5 minutes

    B. Every 90 seconds

    C. Every 60 seconds

    D. Every 30 seconds


    参考答案:B

  • 第5题:

    Each life jacket light that has a non-replaceable power source must be replaced ______.

    A.every 6 months after initial installation

    B.every 12 months after initial installation

    C.every 24 months after initial installation

    D.on or before the expiration date of the power source


    正确答案:D

  • 第6题:

    He is neither__________ European,nor American. He is from Australia.

    A.a; a;!
    B.a; an; the
    C.a; an; !
    D.an; an; !

    答案:C
    解析:
    “European”是辅音开头,所以前面用不定冠词“a”,表示“一个欧洲人”;“American”元音开头,前面用不定冠词“an”,表示“一个美国人”;第三个空指他来自澳大利亚,前面不用冠词。故选C。