Numbers with one more numbers between them can be switched with one another.
一些数字和另一个在他们之间的数字可以互相换位...
The members of set A are all the positive even factors of 24.
A组的所有数字都是正的偶数,并且是24的因式.(比如:8,12)
下次麻烦把整到题写出来,只写一半很难理解题意.