白兔的身体里不含色素,它的眼睛其实是无色的,我们看到的红色是眼球的血液反映出来的颜色,并不是眼球的颜色。()
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You are the desktop administrator for ExamSheet. Your Windows 2000 Professional computer is configured to support two monitors. You install a DOS-based application on your computer. The application uses the Windows 2000 Professional default settings Autoexec.nt and Config.nt. Your primary and secondary video adapters are both set to 32 bit color, 800 x 600 resolution, and default refresh rates. You create a shortcut for the DOS-based application on the primary monitor's desktop and use the default PIF settings. You attempt to run the DOS-based application on the primary monitor. The application opens, but the display area is scrambled. You then attempt to run the DOS-based application on the secondary monitor. The application does not open. Both monitors function correctly when you run Windows based applications. You want to be able to run the DOS-based application on either monitor. What should you do?()
A. Reconfigure the PIF settings of the DOS-based application to start in a window.
B. Reconfigure the shortcut properties to run the DOS-based application in full screen mode.
Change the drivers for both video adapters from WDM compliant drivers to DOS drivers.
D. Change the refresh rate setting to 72 hertz for both video adapters.
E. Change the color setting for both video adapters to 256 colors.
液压泵在启动后要进行一段时间无负荷空转(),尤其气温很低时,更须经温车过程,使液压回路循环正常后再加予负载,并确认运转状况。
A. 约10分钟~30分钟
B. 约20分钟~40分钟
C. 约5分钟~10分钟
D. 约3分钟~5分钟
直流采样指将现场模拟量信号先转换为直流电压信号,在送至A/D转换器转换,一般是将其转换为()的直流电压。
A. 0-5V
B. -5V-+5V
C. 0-10VD
D. 0-15V