單項(xiàng)選擇題

“Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired, or at least patched up temporarily until the next stop” This sentence means that （）.

A.Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired on the spot
B.Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired on the next port of call
C.Any leaks in piping, propeller shaft, machinery, tanks, will have to be repaired until the next stop
D.Any leaks in piping, propeller shaft, machinery, tanks, will have to be at least patched up

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單項(xiàng)選擇題

“In times of heavy weather, it is extremely dangerous if manning is very short” This sentence means （）.

A.In times of heavy weather, it is extremely dangerous if a seaman is not enough tall
B.In times of heavy weather, it is extremely dangerous if a crew is very short
C.In case of bad weather, it is particularly dangerous if there is a shortage in personnel
D.In case of bad weather, it is particularly dangerous if there are enough personnel

單項(xiàng)選擇題

Preventive maintenance （）.

A.should not be carried out during the watches
B.can only be carried out in port
C.is a kind of maintenances carried out prior to the occurrence
D.is a kind of maintenances carried out after the occurrence