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如图所示的电蚊拍,具有灭蚊和照明等功能.当开关S1闭合,S2断开时,只有灭蚊网通...
![manfen5.com 满分网](http://img.manfen5.com/res/CZWL/web/STSource/20131104181407303695441/SYS201311041814073036954006_ST/images0.png)
如图所示的电蚊拍,具有灭蚊和照明等功能.当开关S
1闭合,S
2断开时,只有灭蚊网通电起到灭蚊作用;当开关S
1和S
2都闭合时,灭蚊网与灯都通电同时起到灭蚊和照明的作用.下列电路设计符合这种要求的是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZWL/web/STSource/20131104181407303695441/SYS201311041814073036954006_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZWL/web/STSource/20131104181407303695441/SYS201311041814073036954006_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZWL/web/STSource/20131104181407303695441/SYS201311041814073036954006_ST/images3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZWL/web/STSource/20131104181407303695441/SYS201311041814073036954006_ST/images4.png)
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