单选题The spur geared mooring winches have advantages over worm geared ones in（）Ahigher efficiency of the gear train while reversingBthe higher gear ratioCthe multi-start featureDhigher recovering speed
单选题
The spur geared mooring winches have advantages over worm geared ones in（）
A
higher efficiency of the gear train while reversing
B
the higher gear ratio
C
the multi-start feature
D
higher recovering speed
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