Which of the following will allow multiple operating systems to run on one workstation？（）

单项选择题Auserreportsthattheircellphonebatteryisdeadandcannotholdacharge.Whichofthefollowingshouldbedonewhendisposingoftheoldbattery？（）

A.Recycle the battery.
B.Store the battery.
C.Place battery in a sealed plastic bag.
D.Disassemble the battery.

单项选择题Whichofthefollowingistherecommendeddisposalmethodforusedcomputers？（）

A.Trash can
B.Burial
C.Recycling center
D.Storage shed

单项选择题Whichofthefollowingcanconserveenergyinaserverroom？（）

A.Sealing all potential cold air leaks
B.Installing additional cooling fans
C.Setting the temperature lower
D.Replacing the UPS with a generator

单项选择题AcorporationplanstoreplaceolderofficePCswithenergyefficientpersonalcomputersintheir24hourhelpdeskdepartment.WhichofthefollowingwouldbetheBESTchoice？（）

A.Tablet notebooks with LCD monitors
B.Thin clients with LCD monitors
C.Thin clients with CRT monitors
D.Notebook computers with LCD monitors

单项选择题Whichofthefollowingtermsisusedwhenprintingdataonboththefrontandthebackofpaper？（）

A.Scaling
B.Copying
C.Duplex
D.Simplex