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3.(2012.长沙模拟)已知函数f(x)的图像是连续不断的,x,f(x)的对应关系如下表:
x
|
1
|
2
|
3
|
4
|
5
|
6
|
f(x)
|
136.13
|
15.552
|
-3.92
|
10.88
|
-52.488
|
-232.064
|
则函数f(x)存在零点的区间有( )
A.区间[1,2]和[2,3] B.区间[2,3]和[3,4] C.区间[2,3]、[3,4]和[4,5] D.区间[3,4]、[4,5]和[5,6]