若f(x)=max[1x-21,√x]则函数f(x)的最小值等于()。
A.0
B.
C.1
D.2
参考答案:C
________in the fields on a March afternoon,I could feel the warmth of spring,feeling good.[ ]
A. To walk
B. Walking
C. Walked
D. Having walked
SWEP-06的前控制盘中()键具有调用程序的功能。
A.*
B.△
C.RCL
D.STO