Pose,an American girl, is going to visit China. Please write an e-mail to tell her sonething about
题目
Pose,an American girl, is going to visit China. Please write an e-mail to tell her sonething about
eating habits and how to eat healthily in China.
答案
The main difference between Chinese and western eating habits is that people in China sit around the table and share the food with each other; while in the West,people only eat the food on their own p...
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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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