（） 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.<br>A:The cable lifter<br>B:The hoisting motor<br>C:The topping wire<br>D:The life-raft

（） 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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