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(2003•常州)已知圆柱的侧面积是100πcm2,若圆柱底面半径为r(cm2)...
(2003•常州)已知圆柱的侧面积是100πcm
2,若圆柱底面半径为r(cm
2),高线长为h(cm),则h关于r的函数的图象大致是( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232530353845989/SYS201310212325303538459027_ST/images0.png)
B.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232530353845989/SYS201310212325303538459027_ST/images1.png)
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232530353845989/SYS201310212325303538459027_ST/images2.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232530353845989/SYS201310212325303538459027_ST/images3.png)
考点分析:
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