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气相色谱仪日常维护事项有哪些？

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You install a new AGP video adapter in your Windows 2000 Professional computer. You install the manufacturer’s device drivers provided with the adapter and reboot your computer to load these drivers. During the startup process， the monitor goes blank and your computer stops responding after that and even does not boot properly. What should you do to solve this problem？（）

A. Start the computer by using Windows 2000 professional CD and then use Emergency Repair Disk. Restore the original adapter driver settings
B. Start the computer in the debug mode. Restore the original adapter driver settings
C. Start the computer in Safe mode. Rename the AGP device by using device manager
D. Start the computer by using the recovery console. Rename the AGP driver.&e

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生物促生剂与微生物制剂的不同？

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正常下肢血压较上肢血压（）

A. 高10～20mmHg
B. 高20～40mmHg
C. 低10～20mmHg
D. 低20～40mmHg
E. 以上均不正确

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信息的基本概念在于它的（）。

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