That’s a beautiful dress you have on
题目
That’s a beautiful dress you have on
A.A.Oh,thanks.I got it yesterday.
B.B.Sorry,it's too cheap.
C.C.You can have it.
D.D.See you later.
答案
选A,因为前面是在对对方表示展赏
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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