if you travel in some areas in india,you
题目
if you travel in some areas in india,you
答案
If you travel in some area in India, you’ll be lucky enough to be waited on by special guides―monkeys. Dressed in waistcoats(背心), these monkeys are always ready to serve you. Hungry, you ...
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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