how are you?it is a long time since we touched last time,now i just coming to say hello to you,
题目
how are you?it is a long time since we touched last time,now i just coming to say hello to you,
and what about your biz going on?kindly wish you happy everyday.
答案
这是封 恢复联系 用的商务信函.
意思是好久没联系,问候一下,问问生意怎么样了!
加上点祝福语...
我公司每个星期都会收到这样的email!
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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