题目内容
计算：-
÷（-2÷3）2×（-2）3-2×|(-1)2007×
+1|．
| 1 |
| 8 |
| 3 |
| 4 |
原式=-
÷
×（-8）-2×
=-
×
×（-8）-
=
-
=
．
| 1 |
| 8 |
| 4 |
| 9 |
| 1 |
| 4 |
| 1 |
| 8 |
| 9 |
| 4 |
| 1 |
| 2 |
| 9 |
| 4 |
| 1 |
| 2 |
| 7 |
| 4 |
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