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(2008•赤峰)用abc表示三种不同的物体,现放在天平上比较两次,情况如图所示...
(2008•赤峰)用abc表示三种不同的物体,现放在天平上比较两次,情况如图所示,那么abc这三种物体按质量从大到小的顺序排列应为( )
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A.a=b>c
B.b>a>c
C.a>c>b
D.c>b>a
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