题目内容

当你将ELEC 1＃ HYD PUMP电门置于ON（接通）位时，哪个系统有压力（）

A. 仅A系统
B. 仅B系统
C. A系统和备用液压系统
D. B系统和备用液压系统

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You have a server that runs Windows Server 2003 Service Pack 2 (SP2). You have a third-party hardware device installed. The device uses a third-party driver. The device works properly. The driver’s hardware manufacturer provides a new device driver. You update the device driver, but the device fails to work. You need to ensure that you can use the new hardware device. What should you do? （）

A. Connect to Windows Update and install all driver updates.
B. From the properties of the device, select Roll Back Driver.
C. From Device Manager, uninstall the device and then restart the server.
D. From Device Manager, disable the device and then click Scan for hardware changes.

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