单选
题目
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6 Your answer_______right
A listens B seems C hears
7 _______ the alien was in the museum,I celled the TV station.
A While B Then C As soon as
8 I coudn't find my dictionary_______.
A somewhere B anywhere C everywhere
9 What______while Linda was on the tetphone?
A happened B has happened C is going to happen
10 Beijing was made to host the 2008 Olympics.It was one of most impotant_______in Chinese histoy.
A things B events C astivties
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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