单选题The withdrawing of the cylinder liners, in general, depends on their （）.This may amount to approximately 1/120 of the diameter in some engines.Acorrect maneuveringBwearCworking efficiencyDmaintenance
单选题
The withdrawing of the cylinder liners, in general, depends on their （）.This may amount to approximately 1/120 of the diameter in some engines.
A
correct maneuvering
B
wear
C
working efficiency
D
maintenance
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