题目

抄写句子 （1） This is Kate. （2） Who are they, Sally? （3） This is my teacher. （4） They are my father and mother. （5） Who are you? 答案：【1】This is Kate. 【1】Who are they, Sally? 【1】This is my teacher. 【1】They are my father and mother. 【1】Who are you? 曲线y＝e－x＋1在x＝0处的切线方程为________．