题目内容

下列程序段执行后，输出结果为（）。n=1s=1While n < 5:s=s*nn=n+1print(s)

A. 24
B. 10
C. 120
D. 15

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下面程序段的循环次数是()。k=0While k < 10 :if k < 1 :continueif k == 5 :breakk+=1

A. 5
B. 6
C. 4
D. 死循环

while语句必须要有限定条件，否则会死循环

A. 对
B. 错

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使用最合适的时态填空。 Mary went for a swim after work yesterday. She needed some exercise because she __________________ (sit) in an office all day in front of a computer.