[計量] PP1-DS-136

看板GMAT作者 (酸)時間16年前 (2009/11/02 12:30), 編輯推噓1(1推 0噓 1→)
留言2則, 2人參與, 最新討論串1/1
136. 13960-!-item-!-187;#058&009782 An integer greater than 1 that is not prime is called composite. If the two-digit integer n is greater than 20, is n composite? (1) The tens digit of n is a factor of the units digit of n. (2) The tens digit of n is 2. 答案A 想問(1)不能包含17.19這類數字嗎?總覺得17.19這種算是反例呀? -- ※ 發信站: 批踢踢實業坊(ptt.cc) ◆ From: 123.192.82.173
推
11/02 12:52, , 1F
題目不是說 n>20了 考慮17 19幹嘛0.0?
11/02 12:52, 1F
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11/02 12:58, , 2F
阿～算到中邪～謝謝喔!!!
11/02 12:58, 2F
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