新概念一册练习题答案
题目
新概念一册练习题答案
模仿例句,使用after改写以下句子
例句：Did you read the book yes ,but i saw the film first
答：I reas the book after i had seen the film
1、did you go to the doctor?yes ,but i made an appointment first
2、did the boss leave the office yes,but he finished work first
答案
I went to the doctor after I had made an appointment.
The boss left the office after he had finished work.
举一反三
已知函数f（x）=x，g（x）=alnx，a∈R．若曲线y=f（x）与曲线y=g（x）相交，且在交点处有相同的切线，求a的值和该切线方程．
我想写一篇关于奥巴马的演讲的文章,写哪一篇好呢?为什么好
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