import random
q = [0] * 5
head = tail = 0
for i in range(5):
if random.randint(0,1)== 0:
q[tail] = random.randint(1,9)
tail += 1
elif head != tail and q[tail - 1] < q[head]:
q[tail] = q[head]
head += 1
执行该程序段后,q的值不可能是( )
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