It seemed that he knew all about it.怎么改同义句啊?
题目
It seemed that he knew all about it.怎么改同义句啊?
It seemed that he knew all about it.改同义句.
答案
he seemed to know everything.
it appeared that he knwe everything.
it appeared that everything was under his control.
he apperaed to control everything.
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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