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統計: A(0), B(4), C(6), D(0), E(0) #844890
統計: A(0), B(4), C(6), D(0), E(0) #844890
詳解 (共 1 筆)
#1166685
這題是C吧
Before complicated counting systems were developed,
ancient people made use of a tallying system.
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