以what psychological quilities should a college student have?的英语作文400字
题目
以what psychological quilities should a college student have?的英语作文400字
答案
Confidence of students is the basic qualityWhen we get into trouble,we weren't discouraged and don't give up halfway,but i can solve the problem.To have full confidence in these for us not too difficu...
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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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