单项选择题
Which of the following will allow multiple operating systems to run on one workstation？（）
A.FireWire B.KVM C.Virtualization D.Terminal servers
单项选择题 Auserreportsthattheircellphonebatteryisdeadandcannotholdacharge.Whichofthefollowingshouldbedonewhendisposingoftheoldbattery？（）
单项选择题 Whichofthefollowingistherecommendeddisposalmethodforusedcomputers？（）
单项选择题 Whichofthefollowingcanconserveenergyinaserverroom？（）
