who speaks English best in your chass?还是who speak English best in your chass?
题目
who speaks English best in your chass?还是who speak English best in your chass?
spesk和spesks哪一个正确且为什么?
答案
都正确.Who speaks English best in your class?意思是：你们班哪个人英语说得最好?Who speak English best in your class?意思是：你们班哪些人英语说得最好?在一般现在时中,speak加“s”后是第三人称单数形式,表示...
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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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