急求英语作文400字左右what do you think about human life一篇!
题目
急求英语作文400字左右what do you think about human life一篇!
答案
Life,a term has a far-reaching significance; life,thinking and exploring a topic.The life of value?More targeted to each individual to realize,this is a wonderful life. Why is it life?It w...
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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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