单选题A grapnel is a（）.Adevice for securing a chain topping liftBhook to prevent the anchor cable from slippingCdevice used to drag for a submerged cable or lineDtype of clam bucket used for discharging bulk cargo
单选题
A grapnel is a（）.
A
device for securing a chain topping lift
B
hook to prevent the anchor cable from slipping
C
device used to drag for a submerged cable or line
D
type of clam bucket used for discharging bulk cargo
参考解析
解析：
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