单项选择题
A.to get B.to approach C.to proceed D.to close
Bales close to the deckhead should be covered to preven...
单项选择题Bales close to the deckhead should be covered to prevent（）.
A.damage by dripping sweat B.damage by odor contamination C.from striking structure D.from steel rusty
The force resulting from the earth’s rotation that caus...
单项选择题The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
A.pressure gradient B.Coriolis effect C.aurora borealis D.ballistic deflection
When steering by autopilot,how often should the steerin...
单项选择题When steering by autopilot,how often should the steering be checked?（）
A.12 times on each watch B.When time allows C.At least once a watch D.No checking is necessary
