求PREP-DS-2-27

27.   2023-!-item-!-187;#058&002572

Does set S contain any even numbers?

(1)  There are no prime numbers in S.

(2)  There are no multiples of 4 in S.

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【答案】E

【思路】

(1)S=4,6,8,9 OR S=9,15,21-----------------------------------------------------------insufficient

(2)S=2,5,6,7 OR S=5,7,9--------------------------------------------------------------insufficient

(1)(2)S=6,9,14 OR S=9,15,21---------------------------------------------------------insufficient

题目问的是集合中是否有偶数,那么1.2应该都能算出有偶数啊,为什么是E呢?

难道是我题目理解的有问题?

请高手指点,谢谢