When anchoring a vessel under normal conditions，which scope of chain is recommended? （）<br>A:Four times the depth of water<br>B:Two and one-half times the depth of water<br>C:Five to seven times the depth of water<br>D:Fifteen times the depth of water

When anchoring a vessel under normal conditions，which scope of chain is recommended? （）
A:Four times the depth of water
B:Two and one-half times the depth of water
C:Five to seven times the depth of water
D:Fifteen times the depth of water

出自：海船船员证

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