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單項(xiàng)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(xiàng)選擇題

The captain wants to see the （）.

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

單項(xiàng)選擇題

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

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

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