1/3单选题
难度：
1.下列图像可以用来表示具有奇偶性的函数的是（ ）
| A |  |
| B |  |
| C |  |
| D |  |
- 提示1：
- IEHpgInpobnkuK3nmoTlm77lg4/ml6LkuI3lhbPkuo7ljp/ngrnlr7nnp7DkuZ/kuI3lhbPkuo556L205a+556ew
- 提示2：
- IELpgInpobnvvIzlvZN4PTDml7bvvIx5PcKxMe+8jOi/neWPjeWHveaVsOWvueW6lOWFs+ezu++8jOaVheWug+S4jeaYr+WHveaVsOWbvuWDjw==
- 提示3：
- IETpgInpobnvvIzlm77lg4/lhbPkuo54PTHlr7nnp7DvvIzlroPml6LkuI3mmK/lpYflh73mlbDkuZ/kuI3mmK/lgbblh73mlbA=
正确答案：Qw==
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
2/3单选题
难度：
2.下列区间关于原点对称的是（ ）
| A |  |
| B |  |
| C |  |
| D |  |
- 提示1：
- IDxpbWcgd2lkdGg9NzUgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvQjIvckJBQ0oxU2c5WmFoVWNZM0FBQUNCOFpiUVp3NDk1LnBuZyI+77yMPGltZyB3aWR0aD04OCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC82Mi83Mi9yQkFDRTFTZzlaYVNmRll5QUFBQ0xKSEtUaUU2MzUucG5nIj7vvIw8aW1nIHdpZHRoPTUzIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzYyLzcyL3JCQUNFMVNnOVpieGV1N29BQUFCbG5KckdvazgxOC5wbmciPuS4jeWFs+S6juWOn+eCueWvueensA==
- 提示2：
- IDxpbWcgd2lkdGg9ODcgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOEYvMEEvckJBQ0ZGU2c5WmJDbjdmbUFBQUNBRFR2RlR3NTYzLnBuZyI+77yMPGltZyB3aWR0aD05OCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yRS83NC9yQkFDSmxTZzlaYUFkM2JwQUFBQ0x6bGFacG8wMjcucG5nIj7vvIw8aW1nIHdpZHRoPTYzIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzhGLzBBL3JCQUNGRlNnOVphQk5Da3VBQUFCeVZaTksySTQ4NS5wbmciPuS4jeWFs+S6juWOn+eCueWvueensA==
- 提示3：
- IDxpbWcgd2lkdGg9ODUgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvQjIvckJBQ0oxU2c5WmFTSzZVb0FBQUJ3YUl3eDI0MzEwLnBuZyI+77yMPGltZyB3aWR0aD03NSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC82Mi83Mi9yQkFDRTFTZzlaYnl4TU1rQUFBQjRkcnBCYnM0NDcucG5nIj7vvIw8aW1nIHdpZHRoPTUxIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzJFLzc0L3JCQUNKbFNnOVphd2NXVW9BQUFCaEhOWVdBczU5My5wbmciPuS4jeWFs+S6juWOn+eCueWvueensA==
正确答案：RA==
6Kej5p6Q77yaQemAiemhue+8jDxpbWcgd2lkdGg9NzUgaGVpZ2h0PTQyIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvQjIvckJBQ0oxU2c5WmFoVWNZM0FBQUNCOFpiUVp3NDk1LnBuZyI+77yM5L2GPGltZyB3aWR0aD04OCBoZWlnaHQ9NDIgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC82Mi83Mi9yQkFDRTFTZzlaYVNmRll5QUFBQ0xKSEtUaUU2MzUucG5nIj7vvIzmiYDku6U8aW1nIHdpZHRoPTUzIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzYyLzcyL3JCQUNFMVNnOVpieGV1N29BQUFCbG5KckdvazgxOC5wbmciPuS4jeWFs+S6juWOn+eCueWvueensO+8m0LpgInpobnvvIw8aW1nIHdpZHRoPTg3IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzhGLzBBL3JCQUNGRlNnOVpiQ243Zm1BQUFDQURUdkZUdzU2My5wbmciPu+8jOS9hjxpbWcgd2lkdGg9OTggaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvNzQvckJBQ0psU2c5WmFBZDNicEFBQUNMemxhWnBvMDI3LnBuZyI+77yM5omA5LulPGltZyB3aWR0aD02MyBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC84Ri8wQS9yQkFDRkZTZzlaYUJOQ2t1QUFBQnlWWk5LMkk0ODUucG5nIj7kuI3lhbPkuo7ljp/ngrnlr7nnp7DvvJtD6YCJ6aG577yMPGltZyB3aWR0aD04NSBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC8yRS9CMi9yQkFDSjFTZzlaYVNLNlVvQUFBQndhSXd4MjQzMTAucG5nIj7vvIzkvYY8aW1nIHdpZHRoPTc1IGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzYyLzcyL3JCQUNFMVNnOVpieXhNTWtBQUFCNGRycEJiczQ0Ny5wbmciPu+8jOaJgOS7pTxpbWcgd2lkdGg9NTEgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvNzQvckJBQ0psU2c5WmF3Y1dVb0FBQUJoSE5ZV0FzNTkzLnBuZyI+5LiN5YWz5LqO5Y6f54K55a+556ew77yb5pWF6YCJRO+8jDxpbWcgd2lkdGg9MTEwIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzJFL0IyL3JCQUNKMVNnOVphQ0lldWlBQUFDSUd3R04xTTIxMS5wbmciPuWFs+S6juWOn+eCueWvueensOOAgg==
3/3单选题
难度：
3.
下列函数是奇函数的是（ ）
| A |
|
| B |
|
| C |
|
| D |
|
- 提示1：
- 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
- 提示2：
- PHA+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzYyLzcyL3JCQUNFMVNnOVpIaG9ubFBBQUFDWUF6TnJsQTI0Ni5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvNzIvckJBQ0UxU2c5Wkhob25sUEFBQUNZQXpOcmxBMjQ2LnBuZyIgaGVpZ2h0PSIyMSIgd2lkdGg9IjE2NCI+PC9wPg==
- 提示3：
- PHA+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzhGLzBBL3JCQUNGRlNnOVpHZ0VHSFFBQUFCeEdFUHBEODU1NS5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvOEYvMEEvckJBQ0ZGU2c5WkdnRUdIUUFBQUJ4R0VQcEQ4NTU1LnBuZyIgaGVpZ2h0PSIyMSIgd2lkdGg9IjU3Ij7kuI3lhbPkuo7ljp/ngrnlr7nnp7A8L3A+
正确答案：Qw==
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