单项选择题
A.除了救生演习之外，船上还有消防演习和应急演习。
B.除了应急演习之外，船上还有救生演习和消防演习。
C.除了消防演习之外，船上还有救生演习和应急演习。
D.除了救生演习之外，船上还有应急演习和消防演习。
单项选择题 Crew members taking part in boat drills should muster, wearing warm outer clothing and life-jackets properly secured.（）
单项选择题 Engine room personel should start their fire pumps in engine room and see that full pressure of the fire pumps is built up.（）
单项选择题 On hearing the fire signal, the crew should carry out their assigned duties immediately.（）