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The anchors should be dropped well out from the pier while at a Mediterranean moor to（）.
A:eliminate navigational hazards by allowing the chain to lie along the harbor bottom
B:increase the anchor's reliability by providing a large catenary in the chain
C:permit the ship to maneuver in the stream while weighing anchors
D:prevent damage to the stern caused by swinging against the pier in the approach

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出自：海船船员证

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