新目标英语八年级下册Unit5 SectionB 3a 翻译
题目
新目标英语八年级下册Unit5 SectionB 3a 翻译
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If I become an athlete,will I be happy?For many young people,becoming a professional athlete might seem like a dream job.If you become a professional athlete,you'll be able to make a living doing some...
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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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