how many pandas are there in the zoo-----()ANoneBno oneCnoD not one
问题描述:
how many pandas are there in the zoo-----()
ANone
Bno one
Cno
D not one
答
A None
因为有具体的对象,即:熊猫,此时,一般用None.
请在客户端右上角评价点“满意”即可