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單項選擇題

The telegraph is the（）(設(shè)備)that connects the engine room and the bridge.

A.gear
B.equipment
C.engine
D.sextant

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單項選擇題

The captain wants to see the （）.

A. chief officer
B. second officer
C. third officer
D. carpenter

單項選擇題

Echo sounder sends a（） (無線電信號)from the bottom of the ship to the seabed.

A. radio signal
B. radio wave
C. signal
D. signal radio

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