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【单选题】
You install Windows 2000 Professional on 10 computers that have video capture cards installed. A user named Lilly reports that her video capture card is not functioning correctly. She wants to use he video capturing software to capture video frames, but she cannot view the video output. You use Device Manager to view the hardware settings on Lilly’s computer as shown in the exhibit. (Click the Exhibit button.) You want Lilly to be able to capture video frames by using the video capture card. What should you do? （）A.
Use System in Control Panel to enable the device.
B.
Use Device Manager to update the drivers for the device.
C.
Move the video capture card to a different PCI slot.
D.
Uninstall the device and disable Plug and Play direction for the device.
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【简答题】wher is the maximum value of Sinc signal sinc(t)= , and the maximum value is?
【单选题】生物体内环境稳态是指
A.
细胞外液理化因素保持不变
B.
细胞外液理化性质在一定范围内波动
C.
细胞内液理化因素不变
D.
细胞内液理化性质在一定范围内波动
E.
细胞内液和细胞外液理化性质在一定范围内波动
【单选题】生物体内环境稳态是指
A.
细胞外液理化因素保持不变
B.
细胞内液理化因素不变
C.
细胞外液理化性质在一定范围内波动
D.
细胞内液理化性质在一定范围内波动
E.
细胞内液和细胞外液理化性质在一定范围内波动
【单选题】For a well made and well maintained sextant，the maximum value of which correction is usually so small that it can be ignored ().
A.
Personal correction
B.
Instrument correction
C.
Phase
D.
Dip correction
【简答题】The sum of two real numbers x and y is 12. The maximum value of their product xy= .
【单选题】生物体内环境稳态是指
A.
细胞外液理化因素保持不变
B.
细胞内液理化因素不变
C.
细胞内液理化性质在一定范围内波动
D.
细胞外液理化性质在一定范围内波动
E.
细胞内液和细胞外液理化性质在一定范围内波动
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