a month ago,i went to see my doctor.when i entered his home余下全文,急
题目
a month ago,i went to see my doctor.when i entered his home余下全文,急
答案
The Singing Angel in the Doctor's RoomA month ago,I went to see my doctor.When I entered his room,I felt very nervous.I knew that my doctor might find something wrong with me,but I also knew that I wo...
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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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