He studies in Nanjing for two years before he came here.
题目
He studies in Nanjing for two years before he came here.
He studies in Nanjing for two years ( ) ( ) here.改同意句,填两个词!
He likes his mother very much.They look the same.这题改错!
答案
He studies in Nanjing for two years ( ) ( ) here.改同意句,填两个词!
这句话时态不对,应该用过去时.
He studied in Nanjing for two years (before) (coming) here.
He looks like his mother very much.They look the same.
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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