单项选择题

Which word indicates color variation in the characteristics of a light?（）

A.Opposing
B.Changing
C.Reversing
D.Alternating

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单项选择题

Which two components pass through the shank of an LWT anchor?（）

A.Anchor shackle and stock
B.Tripping palm and flukes
C.Crown and chocks
D.Swivel and stabilizer bar

单项选择题

Which statement describes the shore between Watch Hill Point and Point Judith? （）

A.Low，rocky cliffs with heavily wooded hills inland
B.Sandy beaches broken by rocky points
C.Sand dunes and beaches with a mud and sand bottom
D.Wooded，barren hills with isolated prominent buildings

单项选择题

Which fitting is used to connect the boom to the mast? （）

A.Clevis pin
B.Gunter-lug
C.Gooseneck
D.Transom