单项选择题
Any emergency pump situated （）machinery space should also be started.
A.outside
B.under
C.beside
D.besides
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单项选择题
On hearing the fire signal, the crew should proceed immediately to （）their assigned duties.
A. carry on
B. put out
C. carry out
D. take off -
单项选择题
Efficient fire-fighting drill demands the full （）of persons in all departments of the ship.
A.operate
B.operation
C.co-operate
D.co-operation -
单项选择题
The signals that will be used for emergency should be clearly （）.
A. set out
B. set off
C. get off
D. cut off
