相关考题
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单项选择题
We are loading dangerous cargo, no （）, please.
A.smoke
B.smoked
C.smoking
D.to smoke -
单项选择题
If there is a fire on board, inform the bridge and give the （）at once.
A.sound
B.sounding
C.alarm
D.signal -
单项选择题
Cast sea anchor to （）the speed of drifting raft.
A.control
B.controlling
C.controlled
D.controls
