题目内容

影响预存室压力的因素有那些?为什么预存的室压力要控制为零?

查看答案
更多问题

多人合影像的布光要求()。

A. 硬
B. 软
C. 亮
D. 匀

数控机床开机后首先使各轴自动检测参考点,其检测顺序为()。

A. Z
B. Y
C. Y
D. X

大气中充满电荷的气团与大地(地物)之间的放电过程叫作()。

A. 球闪
B. 地闪
C. 云闪

You use Microsoft .NET Framework 4 to create a Windows Forms application. The application includes a RichTextBox control and a ListBox control. The ListBox control is populated with a list of valid file names. The application allows users to drag a ListBox item to the RichTextBox control. You need to provide a visual indication that a file that is dragged can be dropped on the RichTextBox control. What should you do?()

A. Use a DoubleAnimation class.
B. Use a Storyboard animation class.
C. Use the DragDropEffects enumeration.
D. Use the DragAction enumeration.

答案查题题库