今天的桃花开了吗?
题目
今天的桃花开了吗?
Peach blossom that person that cross-straits open positive amorous ,but the that year does not know the body at why square!
答案
问题补充：Peach blossom that person that cross-straits open positive amorous ,but the that year does not know the body at why square!两岸的桃花开得正艳,可是当年的人不知身在何方了!人面不知何处去,桃花依...
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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