英语有趣造句
题目
英语有趣造句
用the day before yesterday last week last Sunday today his morning 造句5句
5问5答
答案
What did you do last week?I watched TV last week. What did you do the day before yesterday?I saw a film the day before yesterday. What did you do this morning ?I played football this morning . What di...
举一反三
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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