Mingming goes to school .改为否定句 I got up at nine yesterday.对at nine提问 I am reading a book.对reading a
题目
Mingming goes to school .改为否定句 I got up at nine yesterday.对at nine提问 I am reading a book.对reading a book提问 lingling went to school at seven.对at seven提问 Daming goes to school every day.对Daming提问
答案
1.mingming doesn't go to school
2.when did you get up yesterday
3.what are you doing
4.when did lingling go to school
5.who goes to school everyday
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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