单选题To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.Aweight of cable to weight of vesselBweight of cable to weight of anchorClength of anchor to depth of waterDlength of cable to depth of water
单选题
To safely anchor a vessel there must be sufficient scope in the anchor cable. Scope is the ratio of（）.
A
weight of cable to weight of vessel
B
weight of cable to weight of anchor
C
length of anchor to depth of water
D
length of cable to depth of water
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