单项选择题
A. lock in B. heavy bolt C. socket D. heavy cleat
The sailor should （）(报告)it to the duty officer.A.report...
单项选择题The sailor should （）(报告)it to the duty officer.
A.report B.ask C.tell D.speak
The running wheel runs along the （）(导轨)on the hatch coa...
单项选择题The running wheel runs along the （）(导轨)on the hatch coaming top.
A. guide rope B. guide rail C. side coaming D. side roller
After operation, drop the control levers into stowing h...
单项选择题After operation, drop the control levers into stowing hole, and （）(停止)the electric motor.
A.start B.stop C.move D.shift
