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單項(xiàng)選擇題

Before （）the harbour, all derricks must be secured properly.

A.leave
B.leaved
C.to leave
D.leaving

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單項(xiàng)選擇題

Minor （）to container.

A.damage
B.damaging
C.damaged
D.All above.

單項(xiàng)選擇題

The temperature in No.2 hold is below （）.

A.normal
B.norm
C.normally
D.All above.

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