Does your have lunch at school?还是一样,哪儿错了?对的是怎样的?
题目
Does your have lunch at school?还是一样,哪儿错了?对的是怎样的?
he don't have class on surday.还是一样,哪儿错了?对的是怎样的?
答案
Do you have lunch at school?
He doesn't have class on Sunday.
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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