,..要求如下:
题目
,..要求如下:
字数:100~500
You are the customer services manager of the airline.Write a follow-up letter (60-80 words) to Mr Bennet telling him the following:
1.The editor of the in-flight magazine contaected the airline about the complaint.
2.The check-in staff have explained the details of the situation.
3.The airline tries to protect its customers from credit card fraud.
4.On this occasion,they are happy to give him a refund.
5.They hope he will use the airline again.
答案
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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