It is special day which is on the first day of lunar calendar.这句话有没有问题?
题目
It is special day which is on the first day of lunar calendar.这句话有没有问题?
it is a special day
答案
It is a special day which is the first day of lunar calendar .不要ON要ON就换做It is a special day which is on the first place of lunar calendar.
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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