lf two cats are before a cat,and two cats are behind a cat ,
lf two cats are before a cat,and two cats are behind a cat ,and a cat is i
lf two cats are before a cat,and two cats are behind a cat ,and a cat is in the middle,how many cats are there in all?是这题!英文的！
lf two cats are before a cat,and two cats are behind a cat ,and a cat is in the middle,how many cats are there in all?是这题!英文的！
可能相似的问题
你能帮帮他们吗