题目函数在点x_(0)处可导的充要条件是f_(-)^prime(x_(0))=f_(+)^prime(x_(0)).A. 对B. 错函数在点$x_{0}$处可导的充要条件是$f_{-}^{\prime}(x_{0})=f_{+}^{\prime}(x_{0})$.A. 对B. 错题目解答答案A. 对