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(2009•烟台)利用两块长方体木块测量一张桌子的高度.首先按图①方式放置,再交...
(2009•烟台)利用两块长方体木块测量一张桌子的高度.首先按图①方式放置,再交换两木块的位置,按图②方式放置.测量的数据如图,则桌子的高度是( )
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021230735193380589/SYS201310212307351933805008_ST/images0.png)
A.73cm
B.74cm
C.75cm
D.76cm
考点分析:
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