(单选题, )下面代码的输出结果是( )
A = [1,2,3]

(单选题, )下面代码的输出结果是( )
A = [1,2,3]
If isinstance(a,float):
print("{} is float".format(a))
Else:
print("{} is not float".format(a))

A.a is float

B.a is

C.[1, 2, 3] is not float

D.出错

正确答案是C