in recent years there has been a growing concern among the general public over the issue of.
题目
in recent years there has been a growing concern among the general public over the issue of.
把介词over提前 怎么改 是这样改的吗 in recent years a growing concern over.has been from the general public.
答案
in recent years concern over .among the general public is growing
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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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