英语作文我喜欢的明星
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英语作文我喜欢的明星
答案
My Favorite StarThere are many popular stars who get great achievements, such as Jackie Chen, Jay Chou, Zhang Ziyi and so on. However, the star who I like most is Fan Bingbing. I know her because of a...
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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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