what is (-------------)?I have a sore throat
题目
what is (-------------)?I have a sore throat
A.your wrong B.your trouble with you C.your matter with you D.the problem
答案
答案：D （wrong只能说what's wrong with you? trouble是个不可数名词,只能说what's your trouble? C我觉得有your就不要with you,有with you 就不要your）所以选D
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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