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Mrs,Sun is a friend of ,A,Mary’s mother,B,mMrs,Sun is a friend of ,A,Mary’s mother,B,mother of Mary,C,Mary ’s mother’s

题目详情
Mrs,Sun is a friend of ,A,Mary’s mother,B,m
Mrs,Sun is a friend of ,A,Mary’s mother,B,mother of Mary,C,Mary ’s mother’s
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答案和解析
A