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如图,已知,,,用、表示为( ) A. B. C.= D.=
如图,已知
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/1.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/2.png)
,用
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/3.png)
、
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/4.png)
表示
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/5.png)
为( )
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/images6.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/6.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/7.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/8.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/9.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/10.png)
=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225811699696190/SYS201311012258116996961009_ST/11.png)
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