For the figure below, what are the numbers of type A and type B segments?
对于下图而言,Type A和Type B的线段个数分别是?
A5 1
B2 4
C3 3
D4 2
For the figure below, what are the numbers of type A and type B segments?
对于下图而言,Type A和Type B的线段个数分别是?
A5 1
B2 4
C3 3
D4 2
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