节流机构除起节流降压作用外,还有自动调节制冷剂流量的作用。
参考答案:错
执行下列程序后,鼠标单击窗体,输出结果为( )。 Private Sub Form_Click() Print“Click”; End Sub Private Sub Form_MouseDown(Button As Integer,Shift_ As Integer,X As Single,Y As Single) Print “Donw” End Sub Private Sub Form_MouseUp(Button As Integer,Shift_ As Integer,X As Single,Y As Single) Print“Up” End Sub
A. DownUpClick
B. ClickDownUp
C. DownClickUp
D. UpDownClick
无符号二进制整数1111001转换成十进制数是( )。
A) 117 B) 119C) 120 D) 121