状态检修的基本原则不包括哪一项?()
A.“安全第一”原则
B.“成本最低”原则
C.“应修必修”原则
D.“过程管控”原则
参考答案:B
—Could you tell me ________?
—Sure. It's near the bank on the other side of the street. [ ]
A. when was the post office built
B. when the post office was built
C. where is the post office
D. where the post office is
数控机床的换刀点必须选在机床原点。( )