题目

设函数在上可导，其导函数为，且函数在处取得极小值，则函数的图象可能是 （    ） A                   B                C                  D 答案：C —Did you enjoy yourself last night?—Yes, it’s very nice of you. I appreciated to your birthday party.A. to be invited B. to have invitedC. having invited D. being invited