质量目标计划值与实际值的比较有许多方法,其中不包括( )。
A.专家审核
B.现场验收
C.专家评定
D.试验
参考答案:B
Peter's jacket looked just the same as Jack's, but it cost _____ his. [ ]
A. as much twice as
B. twice as much as
C. much as twice as
D. as twice much as
用光学平直仪检查导轨水平面内的直线度误差时,只要将目镜按照顺时针方向旋转900,使微动手轮与望远镜垂直即可测和。