第19题: [单项选择]Nowadays, our government advocates credit to whatever we do or whoever we contact with. Once you ______ your words, you will lose your social status and personal reputation. A. keep up with B. give away from C. go back on D. lose sight of 参考答案:C 答案解析:go back on违背,毁约。句意:如今我们的政府提倡做任何事、与任何人联系都要讲诚信。一个人一旦违约,就会失去社会地位和信誉。A.keep up with跟上,赶上;B.give不能和 away
第25题: [单项选择]在窗体上画一个名称为Command1的命令按钮,然后编写如下事件过程:
Private Sub Command1_Click( )
x = -5
If Sgn(x) Then
y = Sgn(x ^ 2)
Else
y = Sgn(x)
End If
Print y
End Sub
程序运行后,单击命令按钮,窗体上显示的是( )。
A. -5 B. 25 C. 1 D. -1 参考答案:C