单项选择题
A.1块 B.2块 C.3块 D.4块
A.HDD-CD/DVD-BEV-Other B.HDD-BEV-Other-CD/DVD C.HDD-Other-BEV-CD/DVD D.PXE-CD/DVD-HDD-Other
A.F9 B.F10 C.F11 D.F12