请写一篇不少于80词的作文,吃在中国
题目
请写一篇不少于80词的作文,吃在中国
答案
The current Wenchuan,is the former Tangshan!They need to rescue the people of P Plus!!We need to not only killed people expressed deep condolences to their relatives expressed sincere sympathy and,mor...
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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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