填首字母完成句子(1) One day ,the American w____ Mark twin went to a city.
题目
填首字母完成句子(1) One day ,the American w____ Mark twin went to a city.
还有一句顺便也说一下:Show me your ticket on your way b___ home.
答案
(1) One day ,the American (writer) Mark twin went to a city.
(2) Show me your ticket on your way (back) home.
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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