函数 f(x)=x 2 +1 在 [0 , 2] 上( )
A. 单调增加
B. 单调减少
C. 不增不减
D. 有增有减
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函数 y=|x+1|+2 的最小值点是( )。
A. 0
B. 1
C. - 1
D. 2
函数f(x)=ex-x-1的驻点为()。
A. x=0
B. x=2
C. x=0,y=0
D. x=1,e–2
Going away to college has made me much more _______(独立的) .
There is a _________ (矛盾) between what your parents want and what you want.