When our personal interests are _____ those of people, we should put people's interests before our own. [ ]

A. conflicting  

B. in conflict with  

C. conflict with  

D. in conflict against

关于主轴准停的说法，正确的是（）。

A.准确的周向定位

B.准确的轴向定位

C.精确的时间控制

D.是自动换刀所必须的功能