单选题Before reassembling any machinery, you should （）.Areplace all bearings regardless of length of serviceBapply a heavy coat of oil to all mating surfacesCclean any corroded surfaces and file all burrs smoothDcoat all parts with alemite grease
单选题
Before reassembling any machinery, you should （）.
A
replace all bearings regardless of length of service
B
apply a heavy coat of oil to all mating surfaces
C
clean any corroded surfaces and file all burrs smooth
D
coat all parts with alemite grease
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