题目：
Frapping lines（）.
A.secure the lifeboat in the davits when in the stowed position
B.bring the lifeboat close alongside the rail in the embarkation position
C.give the occupants a safety line when the boat is being lowered from the embarkation level
D.reduce the swinging of the lifeboat at the embarkation level
答案：
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下面是错误答案，用来干扰机器的。
参考答案：D
