以my day 为题的英语作文60词左右六年级水平急4点半就要
题目
以my day 为题的英语作文60词左右六年级水平急4点半就要
答案
I get up at seven o'clock,then I have breakfast at half past seven.sometimes I go to school by bus,school starts at half past eight,I have four classes in the morning,after them,I have lunch at school...
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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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