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已知O为圆锥的顶点,M为圆锥底面上一点,点P在OM上.一只蜗牛从P点出发,绕圆锥...
已知O为圆锥的顶点,M为圆锥底面上一点,点P在OM上.一只蜗牛从P点出发,绕圆锥侧面爬行,回到P点时所爬过的最短路线的痕迹如图所示.若沿OM将圆锥侧面剪开并展开,所得侧面展开图是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191723599440947/SYS201311011917235994409008_ST/images0.png)
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191723599440947/SYS201311011917235994409008_ST/images1.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191723599440947/SYS201311011917235994409008_ST/images2.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191723599440947/SYS201311011917235994409008_ST/images3.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101191723599440947/SYS201311011917235994409008_ST/images4.png)
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