5 6 7 8 .

来源：学生作业帮助网编辑：作业帮时间：2024/05/12 13:21:20

5 6 7 8 .
5 6 7 8 .

5 6 7 8 .
ADDB

8,6,7,5,( ) ( ) 5,6,7,8, 5 6 7 8 5,6,7,8, 5,6,7,8, 5 6 7 8 5,6,7,8, 5,6,7,8, 5 6 7 8 5 6 7 8 5 6 7 8 5,6,7,8, 5,6,7,8, 5,6,7,8 5 6 7 8 5,6,7,8 5 6 7 8 5 6 7 8