金刚镗床进行精密镗削加工时.镗削进给量通常为()mm/r,所以切削力较小。
A.0.01-0.05
B.0.02-0.05
C.0.02-0.08
D.0.05-0.10
参考答案:C
—What does your father_____?
—He is tall and thin. [ ]
A. look after
B. look like
C. look at
D. look for
由于基层原因引起较严重的拥包,可采用()铣平。