单项选择题
VB中,执行下面的程序段后,b的值为()
a = 100 b = 20 a = a + b b = a - b
A.80
B.20
C.120
D.100
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单项选择题
VB中,执行下面的程序段后,b的值为()
a = 100 b = 20 a = a + b b = a - b
A.80
B.20
C.120
D.100
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