未知题型
一会议组织者必须出3个人来讨论一位应邀演讲者的论文。这3名参加讨论的人将从7名志愿者中选出。已知这7个人中4个人——I,K,L和M对该名演讲者的理论观点持赞成态度,其余的3个人——S,T和U对该名演讲者的理论观点持反对态度。这个组织会议的人在选择参加的人时必须遵从以下原则:
赞成的人中至少有一个当选,反对的人中也至少有一人当选;
I入选时,T不能入选;
L和M要么同时当选,要么同时落选;
K和U要么同时当选,要么同时落选。
下面哪一项可能是入选的讨论者?
D.L,S,T
- A.I,L,M
B.I,S,T
C.K,S,U
【参考答案】
C
解析:条件表达:
(1)F≥1,H≥1(表示赞成的人中至少有一个当选,反对的人中也至少有一人当选)......
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