沃尔得国际英语圣诞节party
题目
沃尔得国际英语圣诞节party
答案
Hello, everyone! It's Christmas again, the most important day in a year. I am very glad to be here, sharing this special day with all of you. At this holy moment, I want to say, "May God bless you! Bless all of us." I wish you and your family a merry Christmas and happy New Year. Thank you!
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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