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航海英语海洋学基本知识单项选择题每日一练(2019.01.23)

  • 单项选择题

    The currents are()mosoonal origin.

    A.from
    B.on
    C.in
    D.of

  • 单项选择题

    A section of the river that is narrower than usual and is often navigable from bank to bank is a().

    A.chute
    B.stabilized channel
    C.slough
    D.navigable pass

  • 单项选择题

    Radiation fog().

    A.always forms over water
    B.is formed by a temperature inversion
    C.is thinnest at the surface
    D.dissipates during the evening

  • 单项选择题

    The cold ocean current which meets the warm Gulf Stream between latitudes 40°and 43°N to form the cold wall is called the().

    A.North Cape Current
    B.Labrador Current
    C.Greenland Current
    D.North Atlantic Current

  • 单项选择题

    A rotary current sets through all directions of the compass. The time it takes to complete one of these cycles is approximately().

    A.3 hours
    B.6 1/2 hours
    C.12 1/2 hours
    D.25 hours

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