题目内容

密封系统工作不稳不正常的可能原因是()

A. 密封环精度不够
B. 落入杂物
C. 浸入冷凝水
D. 沉积杂物

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以下关于录入取替代料的说明中,正确的是?()

A. 如果元件不考率用在哪个主件上,只要是使用到单头组件的任何主件,都可使用单身的组件来取替代料时,即可将主件品号字段用*填满
B. 当单头的“取替代料”有多个时,可以决定以哪一个料件来优先取代单头的元件,顺序码较小者会优先考虑
C. 取替待料的生效日期和失效日期为空表示取替代料与单头元件的取替代关系永久有效
D. 取替代时,单身元件品号不能和单头元件品号相同

自由电子在电场力的作用下的定向移动称为()。

A. 电源
B. 电流
C. 电压
D. 电阻

脑血管意外引起呼吸衰竭的机制为()。

A. 肺顺应性降低
B. 胸廓顺应性降低
C. 呼吸肌收缩减弱
D. 肺泡回缩力降低
E. 肺泡膨胀稳定性增强

You install Windows 2000 Professional on your portable computer. You use a docking station for your portable computer when you are in the office. You install an ISA-based SCSI adapter in your docking station. You insert your computer into the docking station and start the computer. The SCSI adapter is not detected during the startup process. You start the Add/Remove Hardware wizard. When the wizard process is finished, the SCSI adapter is not listed. You want to allow Windows 2000 Professional to detect the SCSI adapter. What should you do? ()

A. Restart the Add/Remover Hardware wizard. Manually add the SCSI adapter drivers.
B. Restart the computer in safe mode. Restart the Add/Remove Hardware wizard to detect the SCSI adapter.
Configure Windows 2000 Professional to use driver signing. Restart the Add/Remove Hardware wizard to detect the SCSI adapter.
D. Copy the SCSI adapter drivers to the Winnt\Driver Cache\i386 folder. Restart the Add/Remover Hardware wizard to detect the SCSI adapter.

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