刮削大型V形导轨，在水平面内的直线度误差为每米（）毫米。
A.0.02
B.0.01
C.0.03
D.0.04
参考答案：A
I have never dreamed of ______such a beautiful place in the world. [ ]
A. there is
B. there to be
C. there being
D. having
简述变送器量程调整、零点调整和零点迁移的目的。
