文档介绍：用时26 — 16 = 16 — 6 = 4 + 1 = 19 — 14 =11 + 14 = 1 + 19 = 3 + 12 = 20 — 5 =8 + 2 = 18 + 9 = 28 — 5 = 11 — 2 =27 — 13 = 13 — 4 = 23 — 5 = 7 + 16 =8 + 12 = 11 + 4 = 19 + 4 = 5 + 11 =2 + 18 = 22 — 10 = 27 — 6 = 27 — 26 =1 + 13 = 24 + 6 = 13 + 10 = 18 + 2 =28 — 7 = 9 — 8 = 29 — 10 = 11 + 9 =12 — 6 = 30 — 18 = 27 — 20 = 2 + 1 =11 — 7 = 11 + 17 = 7 + 4 = 9 + 7 =29 — 3 = 27 — 2 = 8 + 20 = 27 — 21 =23 — 19 = 11 + 1 = 16 — 1 = 11 + 13 =8 + 10 = 19 — 10 = 24 — 17 = 29 — 8 =17 — 3 = 3 + 19 = 14 — 2 = 13 — 12 =3 + 4 = 26 — 8 = 12 + 14 = 1 + 13 =13 — 5 = 25 — 10 = 15 + 11 = 7 + 2 =29 — 10 = 12 + 17 = 11 + 1 = 7 — 4 =26 — 22 = 7 + 4 = 1 + 20 = 15 + 2 =18 + 9 = 28 — 20 = 23 — 11 = 16 — 12 =24 — 3 = 14 — 6 = 12 + 10 = 30 — 26 =28 — 7 = 24 — 18 = 29 — 13 = 1 + 4 =4 — 1 = 6 + 10 = 2 + 3 = 26 — 19 =13 — 1 = 26 + 4 = 7 + 18 = 10 + 15 =30 — 13 = 1 + 1 = 10 + 12 = 28 — 18 =18 — 13 = 9 — 1 = 30 — 23 = 8 + 13 =用时23 — 16 = 25 — 24 = 30 — 16 = 15 — 4 =27 — 6 = 6 + 9 = 16 — 13 = 20 — 18 =28 — 18 = 4 + 14 = 23 — 22 = 27 — 15 =24 — 1 = 10 — 5 = 29 — 3 = 12 — 8 =2 + 24 = 30 — 6 = 21 — 18 = 2 + 18 =5 + 8 = 18 + 7 = 11 — 2 = 26 — 13 =11 + 7 = 8 — 2 = 21 — 12 = 14 — 4 =11 + 9 = 29 — 23 = 26 + 3 = 9 + 16 =28 — 4 = 18 — 2 = 26 — 25 = 14 — 11 =29 — 24 = 25 — 6 = 1 + 27 = 13 — 8 =7 + 10 = 12 + 17 = 9 + 18 = 30 — 19 =6 — 1 = 7 + 5 = 15 — 7 = 11 + 4 =17 + 3 = 16 + 6 = 28 + 1 = 27 — 2 =29 — 8 = 28 — 1 = 2 + 17 = 4 + 20 =30 — 5 = 19 + 8 = 11 + 2 = 21 — 3 =20 + 9 = 20 — 18 = 6 + 4 = 28 — 11 =29 — 14 = 16 — 7 = 4 + 4 = 12 — 5 =19 — 8 = 26 — 6 = 20 + 9 = 29 — 28 =8 + 20 = 10 + 13 = 21 + 7 = 13 + 3 =5 + 7 = 30 — 21 = 8 + 9 = 13 — 9 =1 + 22 = 2 + 18 = 11 — 2 = 8 + 19 =4 + 26 = 17 — 13 = 6 + 4 = 19 — 8 =22 + 7 = 2 + 13 = 21 — 19 = 17 — 8 =28 — 10 = 19 + 4 = 13 — 9 = 21 + 7 =3 + 23 = 5 + 14 = 28 — 17 = 1 + 10 =用时10 — 1 = 13 + 9 = 18 + 11 = 1 + 10 =28 — 17 = 12 + 8 = 3 — 2 = 27 — 6 =16 — 10 = 8 + 14 = 26 — 9 = 16 + 4 =5 + 18 = 11 + 13 = 18 + 12 = 4 + 20 =9 + 17 = 30 — 20 = 16 + 8 = 19 — 13 =13 + 11 = 8 + 7 = 26 — 1