中为什么是is it?
题目
中为什么是is it?
Only when artists do not feel restricted in cerating their parintings or sculptures is it possible for them to present truly original works of art.
答案
这是only放在句首的倒装句.当ONLY后面有状语从句并且放在句首时,主句部分的主语和动词就会倒装,it is possiible 就变成了 is it possible这里的状语从句就是when artists do not feel restricted in cerating their ...
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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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