A:0.03
B:0.02
C:30.03
D:29.97
—Must we leave the classroom now?
— No, you _____. You _____ leave after the bell rings.
我国南方电力工业的主要形式是( )
若x=﹣2是函数f(x)=(x2+ax﹣1)ex﹣1的极值点,则f(x)的极小值为( )