A.life-jacket B.lifeboat C.life-raft D.lifebuoy
单项选择题灭火()
A. put out fire B. put on fire C. take on fire D. take off fire
单项选择题每月一次()
A. once a month B. once a week C. once a day D. once a year
单项选择题封闭舱室()
A.enclose room B. enclosed space C. closed space D. closed room
单项选择题火()
A.fire B.tire C.smoke D.water
单项选择题消防演习()
A.fire drill B.boat drill C.emergency drill D.life drill