A.Installthetwocardsinslots5and6inthex445.
B.Installthetwocardsinslots3and5inthex445makesureslots4and6arenotoccupied.
C.InstallanRXE-100oneachx445andinstallonecardinthex445andonecardinanRXE-100oneachsystem.
D.ConnectanRXE-100betweenthetwox445sandinstallonecardineachx445andonecardineachsideoftheRXE-100.
参考答案：A
