单项选择题
Bosun, I’ve never operated the hatch covers （）by hydraulic power.
A.powered
B.driven
C.moved
D.opened
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相关考题
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单项选择题
When the weather becomes bad, the hatch covers will be （）.
A.closed
B.opened
C.handled
D.stopped -
单项选择题
After operation, drop the control levers into stowing hole, and （）the electric motor.
A.start
B.stop
C.move
D.open -
单项选择题
Don’t operate two or more hatch （）at the same time.
A.caps
B.levers
C.covers
D.coamings
