简述设备维护保养的目的。
参考答案:
是及时地处理设备在运行中,由于技术状态的发展变化而引起的大量、常见的问题,随时改善设备的使用状态,保证设备正常运行,延长使用寿命。
建筑安装工程施工中的工程排污费属于 ______。
A.文明施工费
B.环境保护费
C.规费
D.直接费
Although the bulk of industry resources and energies have focused on developing the fastest (11) or slickest (12) , more and more mindshare is turning to the evolution of the computer interface. Advancements in the areas of input devices, (13) processing and virtual reality could lead to fundamental changes in the way human and computer interact. The technological battlefield of the future will be adding layers between the user and the raw machine to make the (14) as invisible as possible. (15) represents the next evolutionary step for the interface.
(15)是()
A.microprocessor
B.operatingsystems
C.voice
D.virtualreality