If a lathe is dirty, its ____________________ may need to be cleaned.
A. cover
B. guide rails
C. spindles
D. both B and C
We can spray ______________in order to eliminate the old grease and oil residue.
A. water
B. anti-corrosion solution
C. Detergent
D. washing-up liquid
We can’t use _________to remove the dried bits of dirt and old grease.
A. cleaning paper
B. toothbrush
C. polishing paste
D. nail file