单项选择题
A. Close all fire doors and use the dry powder extinguisher. B. Close all fire doors and use the foam extinguisher. C. Close all fire doors and use the CO2 extinguisher. D. Close all fire rooms and use the dry powder extinguisher.
立即发警报。（）A. Sound the bell immediately.B. Sound the alar...
单项选择题立即发警报。（）
A. Sound the bell immediately. B. Sound the alarm immediately. C. Ring the alarm immediately. D. Ring the bell immediately.
准备弃船。（）A. Prepare to abandon ship.B. Prepare for abando...
单项选择题准备弃船。（）
A. Prepare to abandon ship. B. Prepare for abandon ship. C. Prepare abandon ship. D. Prepare for ship.
他们应该明白不同报警信号的意义。（）A. They should be clear about all fir...
单项选择题他们应该明白不同报警信号的意义。（）
A. They should be clear about all fire-fighting equipment.. B. They should be understood about the meaning of the different alarm signals. C. They should be clear about all life-saving equipment. D. They should be clear about the meaning of the different alarm signals.
