中学生网络课堂本课配套习题挑战模式1/4
单选题
难度系数：
1.已知函数
的图像如图所示，则该函数的单调递增区间是（ ）
的图像如图所示，则该函数的单调递增区间是（ ） A:  |
B:  |
C:  |
D:  |
一次做对，真牛！
+5奖励规则>
- 提示1：IOS7juW3puWQkeWPs+eci++8jOmaj+edgHjnmoTlop7lpKfogIzlh73mlbDlgLzlop7lpKfnmoTmmK/ljZXosIPpgJLlop7ljLrpl7Q=
- 答案：Qw==
6Kej5p6Q77ya5LuO5bem5ZCR5Y+z55yL77yM6ZqP552AeOeahOWinuWkp+iAjOWHveaVsOWAvOWinuWkp+eahOaYr+WNleiwg+mAkuWinuWMuumXtO+8jOaJgOS7peaYrzxpbWcgd2lkdGg9MTAzIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzJFLzczL3JCQUNKbFNnOGxyaFJsTnZBQUFDTVVWMnhESTA2Mi5wbmciPg==
本课配套习题挑战模式2/4
单选题
难度系数：
2.
函数ƒ (x)=x2−2(a−1)x+2 在区间
上单调递增，则
的取值范围是（ ）
| A:
|
| B:
|
| C:
|
| D:
|
一次做对，真牛！
+5奖励规则>
- 提示1：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
- 提示2：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
- 提示3：PHA+PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwL0Q1L0FGL3JCQUNGRlFBRE4zQU5NZUdBQUFCcldiZXZpTTUxMy5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvRDUvQUYvckJBQ0ZGUUFETjNBTk1lR0FBQUJyV2JldmlNNTEzLnBuZyIgaGVpZ2h0PSIyMSIgd2lkdGg9IjU5Ij48L3A+
- 答案：Qw==
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
本课配套习题挑战模式3/4
单选题
难度系数：
3.已知
在定义域
上是增函数，且
，则
的取值范围是（ ）
在定义域上是增函数，且，则的取值范围是（ ） A:  |
B:  |
C:  |
D:  |
一次做对，真牛！
+5奖励规则>
- 提示1：IDxpbWcgd2lkdGg9ODkgaGVpZ2h0PTYyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvNzMvckJBQ0psU2c4bUdnaGY0NUFBQUMybGtwLTc0NTkzLnBuZyI+
- 提示2：IDxpbWcgd2lkdGg9NDAgaGVpZ2h0PTYyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOEYvMDgvckJBQ0ZGU2c4bUhBMGM0aEFBQUNhbTdOOHFVMjM0LnBuZyI+
- 提示3：IDxpbWcgd2lkdGg9NjAgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvNzMvckJBQ0psU2c4bUx6SlRLQ0FBQUJ0a2pOZHNFMjc5LnBuZyI+
- 答案：QQ==
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
本课配套习题挑战模式4/4
单选题
难度系数：
4.函数在R上是减函数，则
与
的大小关系是（ ）
在R上是减函数，则与的大小关系是（ ） A:  |
B:  |
C:  |
D:  |
一次做对，真牛！
+5奖励规则>
- 提示1：IDxpbWcgd2lkdGg9MTY4IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzYyLzcxL3JCQUNFMVNnOG1YUm1GVDFBQUFEWTMwWHMzZzA4Ny5wbmciPg==
- 提示2：IDxpbWcgd2lkdGg9MTM1IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzhGLzA4L3JCQUNGRlNnOG1XaUE0OUpBQUFETTFnOUtGQTIzMC5wbmciPg==
- 提示3：IDxpbWcgd2lkdGg9OTcgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOEYvMDgvckJBQ0ZGU2c4bVhRM3FJb0FBQUNEd0VuZjVFMTI1LnBuZyI+
- 答案：Qg==
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
