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If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two stroke/cycle diesel engine will develop approximatelyA.the same indicated horsepower as a four-stroke/cycle engineB.twice the indicated horsepower as a four

题目

If all other conditions such as bore, stroke, speed, and mean effective pressures are equal, a two stroke/cycle diesel engine will develop approximately

A.the same indicated horsepower as a four-stroke/cycle engine

B.twice the indicated horsepower as a four-stroke/cycle engine

C.one half the indicated horsepower as a four-stroke/cycle engine

D.one power stroke for every two crankshaft revolutions


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    X线平均波长(λmean)与最短波长(λmin)的关系,正确的是

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    B、λmean=3.2λmin

    C、λmean=2.8λmin

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    E、λmean=2.2λmin


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  • 第2题:

    Whichofthefollowingcommandswillsettheduplexofanetworkadapter?()

    A.no-amedia_speed=100_Full_Duplexen0

    B.ifconfig-amedia_speed=100_Full_Duplexent0

    C.chdev-lent0-amedia_speed=100_Full_Duplex

    D.chinet-len0-amedia_speed=100_Full_Duplexen0


    参考答案:C

  • 第3题:

    用括号中所给单词的正确形式填空 Nick and Jill Robertson were ________ (bore) with spending their holidays in a bungalow by the beach every year.


    A

  • 第4题:

    The upper piston rings m large, slow-speed, two-stroke/cycle diesel engines are most effectively lubricated by oil ____.

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    B.thrown off from the main bearings

    C.supplied from wick fed drip lubricators

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  • 第5题:

    X线平均波长(λmean)与最短波长(λmin)的关系是

    A.λmean=3λmin

    B.λmean=2.5λmin

    C.λmean=2λmin

    D.λmean=1.5λmin

    E.λmean=λmin


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