填空题
The numbers in the middle section have some connection with those clown the sides.
What should be there to replace the question mark?
What should be there to replace the question mark?
【正确答案】
【答案解析】6根据前四行可观察出规律是每行后两格的数字之和等于该行第一格中的数字，因此最后一行中填入的数字与3相加之和应等于9，故答案为6。