装配滚动轴承时，轴颈或壳体孔台阶的圆弧半径应（）轴承的圆弧半径。
A.大于
B.小于
C.等于
参考答案：B
For all these years, I have been working for others. I’m hoping I’ll___ my own business someday.
A．turn up
B．pack up
C．set up
D．make up
新闻实题与虚题有何异同？
