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函数的值域为( ) A.[1,] B.[1,] C.[1,] D.[1,2]
函数
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183325082921767/SYS201310241833250829217009_ST/0.png)
的值域为( )
A.[1,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183325082921767/SYS201310241833250829217009_ST/1.png)
]
B.[1,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183325082921767/SYS201310241833250829217009_ST/2.png)
]
C.[1,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131024183325082921767/SYS201310241833250829217009_ST/3.png)
]
D.[1,2]
考点分析:
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