求英语口语作文
题目
求英语口语作文
RT,求一篇英语口语作文,
Do you often buy your friends gifts on special occasions?Why or why not?
答案
I often buy some gifts for my friends on special occasions like their birthday 、anniversary and so on.but ,I won't buy something very expensive.because more expensive the gift is more sincerity it co...
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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