英语作文my biggst problem
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英语作文my biggst problem
半小时之内解决,急死我了
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My biggest problemMy biggest problem is too introvertive,I am not talktive,this make me feel very embressed sometimes,I've no idea to communicate with others,this always make me feel self-based and s...
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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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