This is my classroom ,lt is very nice ,l like m
题目
This is my classroom ,lt is very nice ,l like m
This is my classroom ,lt is very nice ,l like my classsroom very much ,Do
you have a nice classroom,too 翻译
答案
这是我的学习的地方,它非常不错,我及其喜欢它.你是否也有?
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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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