医生与病人英语作文
题目
医生与病人英语作文
明天要交
答案
what's matter with you?
i have a headache.
when is it start?
three day ago.
oh ,that too bad.
i thank so .what should i do
you shouid eat midecine .
oh ,thanks very mach.
you are weicome .
举一反三
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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