6设

在区间

内有定义, 若当

时, 恒有

,则

,
D.可导的点, 且
开始考试点击查看答案 7设

为可导函数, 则( )
A.当
必有
B.当
必有
C.当
必有
D.当
必有
开始考试点击查看答案 8方程

在

内( )
A.无实根,
B.恰有一实根,
C.恰有二个实根,
D.有无穷多个实根
开始考试点击查看答案 9设

, 则( )
A.
是
的极大值点
B.
是
的极大值点
C.
是
的极小值点
D.
是
的拐点
开始考试点击查看答案 10设在[0,1]上

, 则

的大小顺序是( )
A.
B.
C.
D.
开始考试点击查看答案