初三英语首字母填空,附译文
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初三英语首字母填空,附译文
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Do you enjoy climbing mountains?I’d like to tell you a true story about John and Peter.They were b 67 mountaineers(登山者).As John was experienced,he was always asking Peter to copy his example.“Wou...
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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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