she was moved entirely by what she saw为什么用by?
题目
she was moved entirely by what she saw为什么用by?
答案
这都是语法规定的内容 只要记得这样用就好了
be moved by ...被什么感动
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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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