Operating systems provide （） between users and the computer.A.a linkB.an interfaceC.devic

● Most of the host operating system provides a way for a system administrator to manually

_____ systems are provided with a stand-by device which will automatically be put in use i

●The operating system provides an easy－to－use （73) to users.（73)A. interface B. hardware C

A collapsible operating table was provided

A 【collapsible】 operating table was provided in h

The bike hire system will______.A.be expanded to serve the 2012 Olympic GamesB.be provided