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The water level showing in a boiler water gauge glass is usually ( ) duringworking.A.higher than the actual drum water levelB.equal to the actual drum water levelC.increasing due to steam condensation in the glassD.lower than actual drum wafer level

题目

The water level showing in a boiler water gauge glass is usually ( ) duringworking.

A.higher than the actual drum water level

B.equal to the actual drum water level

C.increasing due to steam condensation in the glass

D.lower than actual drum wafer level

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    43________

    .A.necess

    B.gas

    C.rest

    D.water


    正确答案：D

  • 第2题：

    Man cannot live without______ water.

    A. a

    B. the

    C. an

    D. /


    正确答案：D

  • 第3题：

    They have built canals to 【irrigate】 the desert.

    A.decorate
    B.change
    C.visit
    D.water

    答案：D
    解析：

  • 第4题：

    He gets these flowers _____ every day.

    A、watered

    B、to water

    C、watering

    D、water


    正确答案:A

  • 第5题：

    ______ means the seabed and ocean floor and subsoil thereof，beyond the limits of national jurisdiction．

    A.AREA

    B.PLACE

    C.SEA ROOM

    D.WATER


    正确答案：A

  • 第6题：

    Such problem （）air, water, and noise pollutions are becoming more and more serious in some big cities.

    Alike

    Bas

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    Dabout


    B
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