运行下方代码段,依次输入3、9、12、8、6、-1,则输出的结果是( )。def count(n): if n%2==0:__________global a__________a = a+1a = 0while True: b = int(input()) if b==-1:__________break else:__________count(b)print(a)
(A)6
(B)5
(C)3
(D)0
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(A)6
(B)5
(C)3
(D)0