试列举企业培训的方法。
参考答案:
企业培训的方法有多种,如讲授法、演示法、案例法、讨论法、视听法、角色扮演法等。
以下叙述中正确的是( )。
A.Private Sub Form_Mouse Down(Button As Integer,Shift As Integer,- X As Single,Y As Single) If Button=2 Then PopupMenu Bs,2 End Sub
B.Private Sub Form_MouseDown(Button As Integer,Shift As Integer,- X As Single,Y As Single) PopupMenu Bs End Sub
C.Private Sub FOrm_MouseDown(Button As Integer,Shift As Integer,- X As Single,Y As Single) PopupMenu Bs,0 End Sub
D.Private Sub Form_MouseDown(Button As Integer,Shin As Integer,- X As Single,Y As Single) If(Button=vbLeftButton)Or(Button=vbRightButton)Then PopupMenu Bs End Sub
一水平的传送带AB长为20m,以2m/s的速度顺时针做匀速运动,已知物体与传送带间动摩擦因数为0.1,则把该物体由静止放到传送带的A端开始,运动到B端所需的时间是多少?