教室里的规则
题目
教室里的规则
答案
classroom rules.school is a place of many rules,and all of them students has to obey.and the main ones,are in the classroom.we have so many rules,such as people can't eat in the class room,we can't ru...
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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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