how many pandas are there in the zoo-----()ANoneBno oneCnoD not o_其他解答

how many pandas are there in the zoo-----()
ANone
Bno one
Cno
D not one

人气：284 ℃　时间：2019-09-24 05:56:32

解答

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