题目内容：

There are many people in the health club,some are young,____ are old.A.others B.the others

优质解答

A.others
并不是对立的.就是说:老年人+年轻人,并不是全体,所以,不能用the others;
some+ the others = all the people.
其中还有一些不老不少的.

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答案为什么是B