A.WindowsNTWorkstation3.5
B.WindowsNTWorkstation3.51
C.WindowsNTWorkstation4.0
D.Windows95
E.Windows98
F.Windows3.11
参考答案：BCDEF
WindowsNT35cannotbeupgradedtowindows2000professionalandifyouwanttoupgradewindowNT351towindows2000professionalfirstupgradeittowindowsNT4andthentowindows2000professional
