单选题（） unit is mounted so as to raise and lower the cable from the spurling pipe, which is at the top and center of the chain or cable locker.AThe cable lifterBThe hoisting motorCThe topping wireDThe life-raft
单选题
（） unit is mounted so as to raise and lower the cable from the spurling pipe, which is at the top and center of the chain or cable locker.
A
The cable lifter
B
The hoisting motor
C
The topping wire
D
The life-raft
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