In good weather，you should deploy the sea anchor from the liferaft to（）.
A. keep the liferaft from capsizing
B. navigate against the current
C. keep personnel from getting seasick
D. stay in the general locatio
电子恒功励磁控制系统，通常以调节发电机电压恒定为目标。
A. 正确
B. 错误
（） is a machine by which electrical energy is transformed into mechanical energy.
An alternator
B. An electric motor
C. A diesel engine
D. A main switchboard
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