问题
填空题
找规律，填数字。
1. What number is missing from the final (最后的) box?
2. Which number comes next?
12 21 30 39 48 ___________
答案
1. 2 2. 57
搜题请搜索小程序“爱下问搜题”
找规律，填数字。
1. What number is missing from the final (最后的) box?
2. Which number comes next?
12 21 30 39 48 ___________
1. 2 2. 57