单项选择题
A. in the refrigerator B. in the cupboard C. under the bed D. on the table
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 （）.
A. life-jacket B. fire mast C. breathing apparatus D. life suit
Man overboard! （）.A. Release a lifebuoyB. Start the pum...
单项选择题Man overboard! （）.
A. Release a lifebuoy B. Start the pump C. Get a fire extinguisher D. Call the captain
In case of fire, （）.A. inform the bridge and give the a...
单项选择题In case of fire, （）.
A. inform the bridge and give the alarm at once B. cut off the circuits and turn off ventilating blowers first C. call the captain first D. report to the duty officer
