9. 解：原式
································ (4分)
8. 解：原式＝
＝
＝2
7. 2
+2
6. 解：
＝
5. 解：原式=2+1-3+2 ……4分
=2 ……2分
4. 解：原式
························································································ 2分
·········································································································· 5分
···················································································································· 6分
3. 解：原式
········································································ 4分
································································································ 5分
······················································································································ 6分
2. 解：原式=
=
1. 解：原式=2+3-1-2=2
19. 
20. 5 21. < 22. 
23. 
24. 25. 47
湖北省互聯(lián)網(wǎng)違法和不良信息舉報平臺 | 網(wǎng)上有害信息舉報專區(qū) | 電信詐騙舉報專區(qū) | 涉歷史虛無主義有害信息舉報專區(qū) | 涉企侵權(quán)舉報專區(qū)
違法和不良信息舉報電話：027-86699610 舉報郵箱：58377363@163.com