⑴ |
⑵ |
(3) |
(4) |
(5) |
(6) |
(7) |
(8) |
(9) |
|
|
|
|
|
|
|
|
|
-2.5 | 1.5 | ﹣3 | 2 | ﹣0.5 | 1 | ﹣2 | ﹣2 | ﹣2.5 |
回答下列问题: