單項選擇題

（）is on the panel of radar.

A.KEYLOCK
B.REPEATER
C.STATIC INVERTER
D.ANTI-CLUTTER-SEA

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單項選擇題

The loading of the ship must be done in accordance with（）.

A.the ship’s instructions
B.the terminal’s instructions
C.the port captain’s instructions
D.the charterer’s instructions

單項選擇題

Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.

A.great convenience
B.finding true north
C.magnetic characteristics
D.simplicity and reliability

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