users
问题VPN connections allow users working at home or on the road to connect in a secure fashion
VPNconnectionsallowusersworkingathomeorontheroadtoconnectinasecurefashiontoa（）corporates
问题On the Internet, users can share（）and communicate with each other. A.process B.tasks C.r
OntheInternet,userscanshare（）andcommunicatewitheachother.A.processB.tasksC.resourcesD.do
问题Operating systems provide （） between users and the computer.A.a linkB.an interfaceC.devic
Operatingsystemsprovide（）betweenusersandthecomputer.A.alinkB.aninterfaceC.devicesD.appli