Dear,Sally,I’m sorry to hear that you’re not feeling well.I think you sho
题目
Dear,Sally,I’m sorry to hear that you’re not feeling well.I think you sho
答案
I think you should take it easy,and you need to take some tome off to relax.You should eat more beef and lamb.That give more enerfy.Also,you should eat more vegetables and fruit to stay healthy.You sh...
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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