求英语翻译帝给翻一下.
题目
求英语翻译帝给翻一下.
What is a Buying Lead? A Buying Lead is a purchase request posted by a buyer. Essentially, it is an invitation to suppliers to send their quotes regarding a certain product or product range. Post a Buying Lead if you cannot find the products you want to source on Alibaba.com. Most suppliers do not post their entire inventory, so tell suppliers what you want and let the right suppliers come to you. When posting your Buying Leads, you can specify your preferred method of contact or conceal your company information.
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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