要一篇学习榜样的英语作文!60~80字的就行.好话可以追加分!今天就要!
题目
要一篇学习榜样的英语作文!60~80字的就行.好话可以追加分!今天就要!
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Shanghai 2010 World Expo The World Expo will be held in Shanghai in our country in two months' time. As a great many people will be visiting the country, the government has already built new hotels,...
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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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