The first three hours of English garmmar and vocabulary were given with the students awake.
题目
The first three hours of English garmmar and vocabulary were given with the students awake.
其中with的含义是什么,具体该怎么用?
答案
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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