單項(xiàng)選擇題

Small hull leaks can be temporarily repaired by（）.

A.parcelling
B.parbuckling
C.caulking
D.seizing

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單項(xiàng)選擇題

Rivets are usually made of（）.

A.wrought-iron
B.aluminum
C.high-tensile steel
D.mild steel

單項(xiàng)選擇題

Repairing damage to the hull at or above the waterline reduces the threat of（）.

A.free surface effects
B.capsizing
C.continued progressive flooding
D.wind heel