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Safety shackles are fitted with ______．
A.a threaded bolt
B.a round pin，with a cotter pin
C.a threaded bolt，locknuts，and cotter pins
D.round pins and locknuts
参考答案
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单选题有多少节锚链在外？（）A
How many shackles are out ?B
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单选题Safety shackles are fitted with（）.A
a threaded boltB
a round pin，with a cotter pinC
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单选题Frapping lines are fitted to lifeboat davits to（）.A
secure the lifeboat in the davits when in the stowed positionB
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reduce the swinging of the lifeboat at the embarkation level
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单选题抛左锚，五节入水！（）A
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Let go starboard anchor, five shackles in water!C
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单选题The locking pin that joins the parts of a detachable link is held in position by（）.A
a tack weldB
the self-locking characteristics of its taperC
a cotter pinD
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