what is particle model of matter and how does it work?
题目
what is particle model of matter and how does it work?
答案
You didn't ask this question with Chinese .So I want to ask you some questions.***Are you Chinese?***If not.Why didn't you know how to spell the 9 planets of the solar system?And why could you speak C...
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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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