求一篇英语演讲稿,题目Education and Career,演讲时间2~3分钟
题目
求一篇英语演讲稿,题目Education and Career,演讲时间2~3分钟
答案
President Barack Obama told students across America in a televised back-to school speech that it takes hard work in school to prepare for a rewarding career.No matter what you want to do with your lif...
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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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