12:8/9 6.4:4.8 4/2:5 4/35:16/21
问题描述:
12:8/9 6.4:4.8 4/2:5 4/35:16/21
12:8/9 6.4:4.8 4/2:5 4/35:16/21
答
12:8/9 6.4:4.8 4/2:5 4/35:16/21
12:8/9 6.4:4.8 4/2:5 4/35:16/21
12:8/9 6.4:4.8 4/2:5 4/35:16/21
12:8/9 6.4:4.8 4/2:5 4/35:16/21