英语翻译
题目
英语翻译
May I have your attention please?Air China flight CA1471 to Kunming is now boarding through Gate 24.Please collect all of your personal belongings and have your boarding pass ready as you board the aircraft.We wish you a pleasant journey.
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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