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(2001•宁波)数a在数轴上表示如图,则化简的结果是( ) A.-1 B.1-...
(2001•宁波)数a在数轴上表示如图,则化简
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232624887718310/SYS201310212326248877183008_ST/0.png)
的结果是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232624887718310/SYS201310212326248877183008_ST/images1.png)
A.-1
B.1-2a
C.1
D.2a-1
考点分析:
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