随着市场经济的进一步发展，企业决定利润率水平的自主权将会( )。
A．不变
B．变小
C．变大
D．不确定
参考答案：C
-Why was professor Liu thundering in the classroom yesterday?
-A student's interrupting his speech ____ the burst of hisanger. [ ]
A. set up
B. set out
C. set about
D. set off
检定温度计时对检定顺序是如何规定的？
