高中数学代数与函数一其他练习题85
题目内容

函数 http://picflow.koolearn.com/upload/papers/20140823/20140823134636504270.gif在定义域 http://picflow.koolearn.com/upload/papers/20140823/20140823134636566204.gif内可导,若 http://picflow.koolearn.com/upload/papers/20140823/20140823134636597421.gif,且当 http://picflow.koolearn.com/upload/papers/20140823/20140823134636613445.gif时, http://picflow.koolearn.com/upload/papers/20140823/20140823134636628392.gif<0, 设 http://picflow.koolearn.com/upload/papers/20140823/20140823134636644326.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823134636660381.gifhttp://picflow.koolearn.com/upload/papers/20140823/20140823134636675309.gif,则

2021-07-16

A.a

B.c

C.c

D.b

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