问题详情
某部门邀请3位专家对12个项目进行评选,每个专家选了5个项目。评选的结果中,有a个项目被3人都选中,有b个项目被2个选中,有c个项目被1人选中,有2个项目无人选中。据此,可以推断(52)。
A.a>2
B.b>5
C.b为偶数
D.c≥a+b
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