管道中液体流动方向垂直的断面称为过水断面。
参考答案:对
He had collected plenty of historical evidence, proved that humans used to have different sleeping patterns.
A.that
B.which
C.it
D.what
单击命令按钮时,下列程序的执行结果为( )。 Private Sub Command1_Click() Dim x As Integer,y As Integer x=12:y=32 Call Proc(x,y) Print x;y End Sub Public Sub Proc(n As Integer,ByVal m As Integer) n=n Mod 10 m=m Mod 10 End Sub
A.12 32
B.2 32
C.2 3
D.12 3