單項(xiàng)選擇題

A natural fiber rope can be ruined by dampness because it may （）.

A.rot
B.shrink
C.stretch
D.unlay

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單項(xiàng)選擇題

A mooring line leading at nearly right angles to the keel is a （）.

A.spring line
B.bow line
C.stern line
D.breast line

單項(xiàng)選擇題

A mooring line leading 45° to the keel，used to check forward or astern movement of a vessel，is called a （）.

A.spring line
B.warp line
C.bow line
D.breast line