初一英语阅读理解,至少三篇,
题目
初一英语阅读理解,至少三篇,
答案
( A )Sim lives and works in a factory near London.He works hard on weekdays.On Saturday and Sunday he doesn’t go to work.Sometimes he goes to see his friends.This Saturday he is going to London with ...
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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