中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.已知－
≤α＜β≤，则
的取值范围为：
≤α＜β≤，则的取值范围为： A:(－ ，) |
B: (－， ) |
| C: (－，) |
| D: (－，) |
一次做对，真牛！
+5奖励规则>
- 提示1：5YiG5Yir5rGC5Ye6PGltZyB3aWR0aD0xNyBoZWlnaHQ9NjMgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC82Qi80OC9yQkFDRTFTMDBTN2g4TEN0QUFBQmNsbjR5REU5MTEucG5nIj7lkow8aW1nIHdpZHRoPTE3IGhlaWdodD02MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzM3LzBGL3JCQUNKbFMwMFM2UUtqWWVBQUFCbU5LOGg3RTY5OS5wbmciPueahOWPluWAvOiMg+WbtO+8jOeEtuWQjuWGjeaxgjxpbWcgd2lkdGg9NDkgaGVpZ2h0PTYzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMzcvNEEvckJBQ0oxUzAwUzZDZEVMWUFBQUNGUTVZSm9FNzgxLnBuZyI+55qE5Y+W5YC86IyD5Zu0
- 答案：QQ==
6Kej5p6Q77ya4oi177yNPGltZyB3aWR0aD0xNyBoZWlnaHQ9NjMgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8zNy8wRi9yQkFDSmxTMDBTMlIzdDVpQUFBQldKdExwMkE2MjkucG5nIj7iiaTOse+8nM6y4omkPGltZyB3aWR0aD0xNyBoZWlnaHQ9NjMgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8zNy8wRi9yQkFDSmxTMDBTMlIzdDVpQUFBQldKdExwMkE2MjkucG5nIj7vvIw8YnI+4oi077yNPGltZyB3aWR0aD0xNyBoZWlnaHQ9NjMgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC82Qi80OC9yQkFDRTFTMDBTNkJ5RUtaQUFBQlNzaE0zUW8wNTMucG5nIj7iiaQ8aW1nIHdpZHRoPTE3IGhlaWdodD02MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzZCLzQ4L3JCQUNFMVMwMFM3aDhMQ3RBQUFCY2xuNHlERTkxMS5wbmciPu+8nDxpbWcgd2lkdGg9MTcgaGVpZ2h0PTYzIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNkIvNDgvckJBQ0UxUzAwUzZCeUVLWkFBQUJTc2hNM1FvMDUzLnBuZyI+77yM77yNPGltZyB3aWR0aD0xNyBoZWlnaHQ9NjMgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC82Qi80OC9yQkFDRTFTMDBTNkJ5RUtaQUFBQlNzaE0zUW8wNTMucG5nIj7vvJw8aW1nIHdpZHRoPTE3IGhlaWdodD02MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzM3LzBGL3JCQUNKbFMwMFM2UUtqWWVBQUFCbU5LOGg3RTY5OS5wbmciPuKJpDxpbWcgd2lkdGg9MTcgaGVpZ2h0PTYzIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvNkIvNDgvckJBQ0UxUzAwUzZCeUVLWkFBQUJTc2hNM1FvMDUzLnBuZyI+Ljxicj7kuKTlvI/nm7jliqDvvIzlvpfvvI08aW1nIHdpZHRoPTE3IGhlaWdodD02MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzM3LzBGL3JCQUNKbFMwMFMyUjN0NWlBQUFCV0p0THAyQTYyOS5wbmciPu+8nDxpbWcgd2lkdGg9NDkgaGVpZ2h0PTYzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMzcvNEEvckJBQ0oxUzAwUzZDZEVMWUFBQUNGUTVZSm9FNzgxLnBuZyI+77ycPGltZyB3aWR0aD0xNyBoZWlnaHQ9NjMgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8zNy8wRi9yQkFDSmxTMDBTMlIzdDVpQUFBQldKdExwMkE2MjkucG5nIj4uPGJyPuetlOahiO+8mijvvI08aW1nIHdpZHRoPTE3IGhlaWdodD02MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzM3LzBGL3JCQUNKbFMwMFMyUjN0NWlBQUFCV0p0THAyQTYyOS5wbmciPu+8jDxpbWcgd2lkdGg9MTcgaGVpZ2h0PTYzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMzcvMEYvckJBQ0psUzAwUzJSM3Q1aUFBQUJXSnRMcDJBNjI5LnBuZyI+KTxicj4=
本课配套习题挑战模式2/5
单选题
难度系数：
2.已知c＞a＞b＞0，则
与
的大小关系为：（）
与的大小关系为：（） | A: > |
| B: < |
C:  |
D:  |
一次做对，真牛！
+5奖励规则>
- 提示1：Y++8jWHvvJ4w
- 提示2：Ye+8nmI=
- 答案：QQ==
6Kej77ya4oi1Y++8nmHvvIziiLRj77yNYe+8njDvvIw8YnI+5Y+I4oi1Ye+8nmLvvIziiLQ8aW1nIHdpZHRoPTMwIGhlaWdodD02MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzlELzcxL3JCQUNGRlMwMFQ2enRIM2JBQUFCaGdzTUROVTkyNS5wbmciPu+8njxpbWcgd2lkdGg9MzAgaGVpZ2h0PTYzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMzcvMEYvckJBQ0psUzAwVDZEb1RwaUFBQUJweHY2eTQ0OTUyLnBuZyI+Lg==
本课配套习题挑战模式3/5
单选题
难度系数：
3.已知a＞b＞0，则
与
的大小关系为：（ ）
与的大小关系为：（ ） | A: > |
| B: = |
| C: < |
| D: |
一次做对，真牛！
+5奖励规则>
- 提示1：PGltZyB3aWR0aD0yOCBoZWlnaHQ9NDMgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC82Qi80OC9yQkFDRTFTMDBUZXdTNHQ5QUFBQnJTaXNrWkU3NDAucG5nIj7vvJ4wJiM4NjU4O2E8c3VwPjI8L3N1cD7CtzxpbWcgd2lkdGg9MjggaGVpZ2h0PTQzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNkIvNDgvckJBQ0UxUzAwVGV3UzR0OUFBQUJyU2lza1pFNzQwLnBuZyI+77yeYjxzdXA+Mjwvc3VwPsK3PGltZyB3aWR0aD0yOCBoZWlnaHQ9NDMgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC82Qi80OC9yQkFDRTFTMDBUZXdTNHQ5QUFBQnJTaXNrWkU3NDAucG5nIj4=
- 答案：Qw==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.已知2＜m＜4,3＜n＜5，则
的取值范围为：（）
的取值范围为：（） A:  ＜＜ |
B:  ＜＜ |
C:  ＜＜ |
| D: ＜＜ |
一次做对，真牛！
+5奖励规则>
- 提示1：PGltZyB3aWR0aD05IGhlaWdodD00MyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzlELzcxL3JCQUNGRlMwMFcyaV9XNnBBQUFCS2pzYVJnSTg0Ni5wbmciPu+8nDxpbWcgd2lkdGg9OSBoZWlnaHQ9NDMgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8zNy8wRi9yQkFDSmxTMDBXM2owZjN0QUFBQkY2YU85d0k0OTcucG5nIj7vvJw8aW1nIHdpZHRoPTkgaGVpZ2h0PTQzIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOUQvNzEvckJBQ0ZGUzAwVzJEWlVLSEFBQUJNRWxMN0ZNOTgyLnBuZyI+
- 答案：RA==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.已知－3＜a＜b＜1.－2＜c＜－1.则(a－b)c2的范围为：（ ）
| A: －13＜(a－b)c2＜-3 |
| B: －16＜(a－b)c2＜0 |
| C: －17＜(a－b)c2＜0 |
| D: －16＜(a－b)c2＜-3 |
一次做对，真牛！
+5奖励规则>
- 提示1：MO+8nO+8jShh77yNYinvvJw0
- 答案：Qg==
6Kej4oi177yNM++8nGHvvJxi77ycMe+8jOKItO+8jTTvvJxh77yNYu+8nDDvvIw8YnI+4oi0MO+8nO+8jShh77yNYinvvJw0LuWPiO+8jTLvvJxj77yc77yNMe+8jDxicj7iiLQx77ycYzxzdXA+Mjwvc3VwPu+8nDQu4oi0MO+8nO+8jShh77yNYiljPHN1cD4yPC9zdXA+77ycMTYuPGJyPuKItO+8jTE277ycKGHvvI1iKWM8c3VwPjI8L3N1cD7vvJwwLg==
