what do you think life will be like in your country in ten years time?you should write something on
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what do you think life will be like in your country in ten years time?you should write something on each of the topics below when giving your answer:A:your home city,town or village B:your life style C:your future job/career D:development of your country E:environment F:technology(250 words)
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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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