这个暑假过的怎么样的英语短文怎么写
题目
这个暑假过的怎么样的英语短文怎么写
答案
I have read many books,the determination to do the housework.I still go out and family members tourism,traveled to many places of interest,feel is very interesting.I think with my family is a very hap...
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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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