We plan visit Beijing this summer Are you happy hear the good news 改错
题目
We plan visit Beijing this summer Are you happy hear the good news 改错
答案
We plan to visit Beijing this summer.
Are you happy to hear the good news?
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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