来自刘泽强的问题
Anumberofstudents_intheclassroom.andtheofthestudentinourclass——56
Anumberofstudents_intheclassroom.andtheofthestudentinourclass——56


Anumberofstudents_intheclassroom.andtheofthestudentinourclass——56
Anumberofstudents_intheclassroom.andtheofthestudentinourclass——56
are
is