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(2002•四川)已知0.5xa+bya-b与xa-1y3是同类项,那么( ) ...
(2002•四川)已知0.5x
a+by
a-b与
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232459336775281/SYS201310212324593367752008_ST/0.png)
x
a-1y
3是同类项,那么( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232459336775281/SYS201310212324593367752008_ST/1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232459336775281/SYS201310212324593367752008_ST/2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232459336775281/SYS201310212324593367752008_ST/3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232459336775281/SYS201310212324593367752008_ST/4.png)
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