單項(xiàng)選擇題The fog is too thick. Don’t（）the radar.
A.switch on
B.switch off
C.close
D.open
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1.單項(xiàng)選擇題（）time will the pilot be available?
A.what
B.When
C.At what
D.At when
2.單項(xiàng)選擇題In navigation the abbreviation “DF” refers to（）.
A.Deep Flood
B.Direction Finder
C.Double Freeboard
D.Dangerous Fertilizer
最新試題
（）is on the panel of radar.
題型：?jiǎn)雾?xiàng)選擇題
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
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Bales close to the deckhead should be covered to prevent（）.
題型：?jiǎn)雾?xiàng)選擇題
Full details of all lights and fog signals are shown on（）.
題型：?jiǎn)雾?xiàng)選擇題
When steering by autopilot,how often should the steering be checked?（）
題型：?jiǎn)雾?xiàng)選擇題