• 2022-05-31
    Radiation heat transfer of smoke tube boiler mainly occurs in , convection heat transfer mainly occurs in .
    A: Furnace and smoke pipe
    B: Smoke pipe and furnace
    C: Needle tube, smoke box
    D: Smoke box and smoke pipe
  • A
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      To give up _____ means _____ . A: smoking, stopping smoking B: smoking, to stop smoking C: to smoke, to stop to smoke D: to smoke, stopping to smoke

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      Do you mind my (smoke) ________here? A: smoke B: to smoke C: smoking D: smoked

    • 2

      As students, we ______. A: won’t smoke B: are not to smoke C: are not smoking D: don’t smoke

    • 3

      We do not permit ()in the office, so we do not permit him()_ here. A: to smoke; to smoke B: smoking; to smoke C: smoking; smoking D: to smoke; smoking

    • 4

      I advised __________ ,but he turned me a deaf ear. A: him not to smoke again B: him to smoke not again C: him to not smoke again D: not him to smoke again