题目

已知函数 (1)       判断并证明函数的奇偶性; (2)       当时函数与相同,且为偶函数,求的定义域及其表达式。 答案:  (2)解:由条件得,时,Not until the motorbike looked almost new_____repairing and cleaning it.A. he stopped    B. did he stop      C. stopped he      D. he did stop
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