清洁涂抹密封胶的区域。( )
A.Clean the area that you attach the fluid. B.Clean the area which you add the agent. C.Clean the area where you applied the sealant.(C正确答案C
清洁涂抹密封胶的区域。( )
A.Clean the area that you attach the fluid. B.Clean the area which you add the agent. C.Clean the area where you applied the sealant.(C正确答案C