请选出表达有效的句子 A: Studentswhoareintheirfourthyearattheuniversitygotovisitthelibraryregularly. B: Thefourth-yearcollegestudentsgotovisitthelibraryregularly.
请选出表达有效的句子 A: Studentswhoareintheirfourthyearattheuniversitygotovisitthelibraryregularly. B: Thefourth-yearcollegestudentsgotovisitthelibraryregularly.
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