1.What do the police think anout the murder?
题目
1.What do the police think anout the murder?
-I'm not sure .But I want anyone who____ the clue to contact the police actively.
A.has B.to have C.have
2.I'm surprised to hear from her.____,we last met ten year ago.
A.On one hand B.That is to say C.Believe is or not
答案
选A
who么,不就是单数么
B
那就是说..
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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