题目内容

编写一个可以安全执行处罚运算，需要确保向函数传递分母和分子，并且分母不为0，部分代码如下：def divide(fz,fm):(1)print("缺少必须值。")（2）print("分母为零。")else：return

A. 1：if fz is None and fm is None:2: elif fm=0:
B. 1：if fz is None or fm is None:2: elif fm==0:
C. 1：if fz is None and fm is None:2: elif fm !=0:
D. 1：if fz is None or fm is None:2: elif fm !=0:

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