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Which of the twin sisters is a doctor _____are A.All B.Both C.Either D.Neither 解释

分类: 作业答案 • 2021-12-18 12:02:51

问题描述：

Which of the twin sisters is a doctor _____are A.All B.Both C.Either D.Neither 解释

答

both
有后面的are可知,有复数个人是医生,所以是both