题目

我国古代数学家张丘建在《算经》一书中提出了如下的数学问题：鸡翁一，值钱五；鸡母一，值钱三；鸡雏三，值钱一。百钱买百鸡，问翁、母、雏各几何？用Python编写程序如下： for x in range(0,21):   for y in range(0,34):     方框内代码可以为： A . for z in range(0,101,1): if x+y+z==100 and 5*x+3*y+z/3==100: print("鸡翁",x,"鸡母",y,"鸡雏",z) B . for z in range(0,101,3): if x+y+z==100 and 5*x+3*y+z/3==100: print("鸡翁",x,"鸡母",y,"鸡雏",z) C . z=100-x-y if 5*x+3*y+z/3==100: print("鸡翁",x,"鸡母",y,"鸡雏",z) D . z=(100-x-y)/3 if 5*x+3*y+z/3==100: print("鸡翁",x,"鸡母",y,"鸡雏",z) 答案：A,B,C

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