信息窗1练习设计第1题答案
(1)4 6 20 10
(2)3 4 2 6
(3)4 6
(4)2 :4 = 5 :10
(5)10
(6)45
信息窗1练习设计第2题答案
(1)5 : 2
(2)5 :2
(3)能 50 :20 = 100 :40
信息窗1练习设计第3题答案
4 :2 = 0.8 :0.04
36 :24 = 60 :40
20 :40 = 0.8 :1.6
20 :10 = 12 :6
信息窗1练习设计第4题答案
2 :3 = 4 :6
1/3 :3/4= 4 :9
信息窗1练习设计第5题答案
(1)20 :5 = 4 :1 = 4
24 :8 = 3 :1 = 3
40 :10 = 4 :1 = 4
45 :15 = 3 :1 = 3
28 :14 = 2 :1 = 2
40 :20 = 2 :1 = 2
120 :25 = 24 :5 = 24/5
(2)28 :14 = 40 :20