题目：
在数+8.3，-4，-0.8，-| 1 |
| 5 |
| 34 |
| 3 |
+8.3，90
+8.3，90
是正数，+8.3，-0.8，-
，-
| 1 |
| 5 |
| 34 |
| 3 |
+8.3，-0.8，-
，-
不是整数．| 1 |
| 5 |
| 34 |
| 3 |
答案
+8.3，90
+8.3，-0.8，-
，-
| 1 |
| 5 |
| 34 |
| 3 |
解：+8.3，90是正数，+8.3，-0.8，-
| 1 |
| 5 |
| 34 |
| 3 |
| 1 |
| 5 |
| 34 |
| 3 |
| 1 |
| 5 |
| 34 |
| 3 |
| 1 |
| 5 |
| 34 |
| 3 |
| 1 |
| 5 |
| 34 |
| 3 |
| 1 |
| 5 |
| 34 |
| 3 |
