1. 11,13,17,23,29,( 30, 34, 35, 382. 20,4,5,16,2,8,4,4,(),9,21,3 17,7,18,83. 20/9,4/3,7/9,4

题目

1. 11,13,17,23,29,( 30, 34, 35, 382. 20,4,5,16,2,8,4,4,(),9,21,3 17,7,18,83. 20/9,4/3,7/9,4/9, 1/4,( 5/9, 5/6, 1/36, 5/364. 1,2,2,4,3,8,4,14,5,( 20 22 25 275. 25,32,37,47,( 56,57,58,596. 86,75,63,54,45,( 38 37 36 45谢谢了.

答案

1、选35我看着都是奇数.2、选7四个数为一组.第一个数除以第三个数等于第四个除以第二个.7/21=3/93、选5/3620/9 * 3/4 = 10/64/3 * 9/7 = 12/77/9 * 9/4 = 14/84/9 * 4/1 = 16/91/4 * 5/36 = 18/104.1,2,2,4,3,8,4,14...