what are they going to have a lunch?的意思 (可以有回答形式
题目
what are they going to have a lunch?的意思 (可以有回答形式
答案
--What are they going to have a lunch?“他们午饭打算去吃什么?”
---They are going to have a buffet .他们打算去吃自助餐.
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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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