—Jenny cut her finger(手指)cooking dinner. What should she do?
—She should _________.
A:see a dentist
B:get some sleep
C:put some medicine on the cut
D:exercise more
已知f(x)=x3﹣ax2+4x有两个极值点x1、x2,且f(x)在区间(0,1)上有极大值,无极小值,则实数a的取值范围是( )