五年级上册2单元英语作文快乐的周末,5句就够了,急,10 分钟后我来看哦
题目
五年级上册2单元英语作文快乐的周末,5句就够了,急,10 分钟后我来看哦
答案
This weekend I went to the West Lake with my parents.I saw the beautiful lake with clean and lear water.There were some lotuses in the lake.They were red and white.They looked so nice that I picked a ...
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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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