1/4单选题
难度：
1.下列各图象表示的函数中没有零点的是（ ）
| A |  |
| B |  |
| C |  |
| D |  |
- 提示1：
- 6Iul5LiA5Liq5Ye95pWw5pyJ6Zu254K577yM5YiZ5Ye95pWw5Zu+5YOP5ZKMIDxpbWcgd2lkdGg9OCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8yRS9DMS9yQkFDSmxTaVBZV2oyU19HQUFBQkVwdWNBLXc4OTIucG5nIj7ovbTkuIDlrprmnInkuqTngrnvvIE=
正确答案：RA==
6Kej5p6Q77ya6Iul5LiA5Liq5Ye95pWw5pyJ6Zu254K577yM5YiZ5Ye95pWw5Zu+5YOP5ZKMIDxpbWcgd2lkdGg9OCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8yRS9DMS9yQkFDSmxTaVBZV2oyU19HQUFBQkVwdWNBLXc4OTIucG5nIj7ovbTkuIDlrprmnInkuqTngrnvvIFE6YCJ6aG555qE5Ye95pWw5Zu+5YOP5ZKMIDxpbWcgd2lkdGg9OCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8yRS9DMS9yQkFDSmxTaVBZV2oyU19HQUFBQkVwdWNBLXc4OTIucG5nIj7ovbTmsqHmnInkuqTngrnvvIE=
2/4单选题
难度：
2.已知函数f(x)的图象是连续不断的曲线，有如下的x与f(x)的对应值表
那么，函数
在区间[1,7]上的零点至少有( )
| x | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| | 132.1 | 15.4 | －2.31 | 8.72 | －6.31 | －125.1 | 12.6 |
在区间[1,7]上的零点至少有( ) | A | 5 |
| B | 4 |
| C | 3 |
| D | 2 |
- 提示1：
- 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
正确答案：Qg==
6Kej5p6Q77ya5LuO6KGo5qC85Lit5Y+v5Lul55yL5Ye65p2lPGltZyB3aWR0aD0zNjUgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvRkYvckJBQ0oxU2lQWXpqWWRUcEFBQUQzZ3FWbE1vNjM2LnBuZyI+77yMPGJyPjxpbWcgd2lkdGg9NDkgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvRkYvckJBQ0oxU2lQWXpUMEpreUFBQUJ1V2FXLTBJNjU1LnBuZyI+5omA5Lul5Zyo5Yy66Ze0PGltZyB3aWR0aD0zMCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC82Mi9DMi9yQkFDRTFTaVBZeVJMb3dOQUFBQmdGTi1odkk3NTkucG5nIj7ljLrpl7Q8aW1nIHdpZHRoPTMwIGhlaWdodD0yMSBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzhGLzg5L3JCQUNGRlNpUFl5U3NuRTRBQUFCamdxR0hZRTk0OC5wbmciPuWMuumXtDxpbWcgd2lkdGg9MzAgaGVpZ2h0PTIxIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvNjIvQzIvckJBQ0UxU2lQWXlCU3RrQUFBQUJqcGJEUF9rMTczLnBuZyI+5Yy66Ze0PGltZyB3aWR0aD0zMCBoZWlnaHQ9MjEgc3JjPSJodHRwczovL3AxLnFpbmdndW8uY29tL0cxL00wMC84Ri84OS9yQkFDRkZTaVBZendIWURXQUFBQmlRb0NEcGsyMzkucG5nIj7kuIrlh73mlbDliIbliKvoh7PlsJHmnInkuIDkuKrpm7bngrnvvIHmiYDku6Xoh7PlsJHmnIk05Liq5Ye95pWw6Zu254K577yB
3/4单选题
难度：
3.函数
在区间
内零点的个数是（ ）
在区间内零点的个数是（ ） | A | 0 |
| B | 1 |
| C | 2 |
| D | 3 |
- 提示1：
- 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
正确答案：Qg==
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
4/4单选题
难度：
4.函数
的零点所在区间是（ ）
的零点所在区间是（ ） | A |  |
| B |  |
| C |  |
| D |  |
- 提示1：
- 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
- 提示2：
- 5Y+I5Zug5Li6PGltZyB3aWR0aD0xNDkgaGVpZ2h0PTQ1IHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMkUvRkYvckJBQ0oxU2lQWlNpb0NBY0FBQUM4NHlGYjVVMTk0LnBuZyI+LDxpbWcgd2lkdGg9MTQ5IGhlaWdodD00NCBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzJFL0ZGL3JCQUNKMVNpUFpTZzZISXhBQUFGM253YkxZMDUzOS5wbmciPizmiYDku6Xlh73mlbDlnKjljLrpl7Q8aW1nIHdpZHRoPTU5IGhlaWdodD00MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzJFL0ZGL3JCQUNKMVNpUFpPUzd4Q2hBQUFDTVRrQWlUNDcyMC5wbmciPuWGheWPquacieS4gOS4qumbtueCuQ==
正确答案：Qg==
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