题目内容

下列语句最终执行结果是：>>>a=3>>>b=3>>>a*=2>>>b+=2>>>a is b

A. True
B. False
C. None
D. 报错

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Python表达式“3+4**2>10 and not 1 or 4|3”的结果是

A. True
B. False
C. 0
D. 7

空类型只有一个数据空值：

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