设a = True ,b = True ,c = False,以下表达式值为False的是()
A: a or b or c
B: (not a or b )and( b or c )
C: False or not a and b or not c
D: not a and not b and (12 in [1..10] )
A: a or b or c
B: (not a or b )and( b or c )
C: False or not a and b or not c
D: not a and not b and (12 in [1..10] )
举一反三
- 设a = True ,b = True ,c = False,以下表达式值为False的是() A: Aa or b or c B: B(not a or b )and( b or c ) C: CFalse or not a and b or not c D: Dnot a and not b and (12 in [1..10] )
- 有以下程序: 则输出结果为() A: False,true,true,true B: True,false,false,false C: False,false,true,false D: True,true,false,true
- 依次执行a='a'、b='a'后,则表达式 a<br/>is b 与表达式 id(a)==id(b)<br/>的值分别是:________ A: False,False B: True,True C: False,True D: True,False
- 1. 表达式‘ab’ in ‘acbed’的值为: ( ) A: True B: true C: false D: False
- 表达式and[True,False,False]相当于TrueFlaseFalse它与下面哪个表达式等值? A: foldr()False[True,False,False] B: foldr()True[True,False,False] C: map()[True,False,False] D: filter(\x-x==True)[True,False,False]