单项选择题
A.detect B.detector C.watch D.inspector
Close the port side （）(通风口) .A.ventilatorsB. designated...
单项选择题Close the port side （）(通风口) .
A.ventilators B. designated station C. fire outfit
The emergency alarm is sounded on （）(汽笛) according to m...
单项选择题The emergency alarm is sounded on （）(汽笛) according to master’s order.
A.VHF B.whistle C.broadcast D.sextant
There is a smell of gas in the hold. You must wear your...
单项选择题There is a smell of gas in the hold. You must wear your （）(氧气面罩).
A. fire mask B. breathing apparatus C. life-jacket D. fire drill
