单项选择题
A. that the port rudder answers very well. B. that the port rudder answers slow. C. that the port rudder answers quickly. D. that the port rudder is broken.
Bow （）(推进器) full to starboard.A.thrustB.sternC.engineD...
单项选择题Bow （）(推进器) full to starboard.
A.thrust B.stern C.engine D.speed
Keep to the middle of the（）(航道) ！A.buoyB.markC.beaconD....
单项选择题Keep to the middle of the（）(航道) ！
A.buoy B.mark C.beacon D.channel
An officer is always（）（值班）on the bridge .A. on watchB. ...
单项选择题An officer is always（）（值班）on the bridge .
A. on watch B. taking watches C. standing watches D. keep watches
