求英语演讲一次难忘的生日
题目
求英语演讲一次难忘的生日
一次难忘的生日,3分钟左右,要英语的!
要多点!
答案
An Unforgettable Birthday Party I had an unforgettable birthday party when I was thirteen years old.Before that,I had never invited my friends to my birthday party and it was my first time to do that....
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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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