单项选择题
Which of the following keys are used to access advanced Windows start up options while a computer is booting?()
A.F8 B.F6 C.F5 D.F2
单项选择题 Theutilitythatchecksthefilesystemstructureis:()
单项选择题 Theerror’invalidbootdisk’means:()
单项选择题 WhichofthefollowingisaWiFidevice?()