高速旋转机械的联轴器,内外圆的同轴度,端面与轴心线的垂直度,都要求作到十分精确,误差希望在()以内。
A、0.1mm
B、0.2mm
C、0.02mm
D、0.01mm
参考答案:A
—Have you found out the telephone number I need?
—Yes,but ______,I have sit here for nearly a half hour.
A.for finding it out
B.to find it out
C.for finding out it
D.to find out it
出库四确认有哪些?