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單項選擇題

The running wheel runs along the （）(導軌)on the hatch coaming top.

A. guide rope
B. guide rail
C. side coaming
D. side roller

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單項選擇題

After operation, drop the control levers into stowing hole, and （）(停止)the electric motor.

A.start
B.stop
C.move
D.shift

單項選擇題

（）(高速)operation and rough handling of covers are dangerous.

A.High-speed
B.Low-speed
C.Slow-speed
D.Quick-speed