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Is this your school?Yes,it is my school.Is this your ticket?Yes,this is my ticket.为什么一个用it is,一个是this is回答?

题目详情
Is this your school?Yes,it is my school.Is this your ticket?Yes,this is my ticket.
为什么一个用it is,一个是this is回答?
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答案和解析
和语境有关,不用这么细抠字眼