A . 计算机电路板
B . 计算机主机板
C . 电脑主机
D . 电脑主板
[配伍题,B型题] CR的中文全称为()DR的中文全称为()A . 数字X线摄影B . 直接X线摄影C . 计算机X线摄影D . 计算机断层成像E . 数字断层成像
[单选题]C.PU全称为()。A.cetrl procesing unitB.central procesing unitC.:central procssing unitC.cetral procssing unit
[单选题]SMF全称为()。A . single model fiberB . single mode fiberC . single multiple fiberD . step mode fiber
[单选题]SDH全称为()A . synchronous digital hierarchyB . synthesis digital hierarchyC . synchronously developed hierarchyD . synthesized development hierarchy
[单选题]SONET全称为()A . synchronous optimized networkB . synchronous optical networkC . synthesis optimized networkD . synthesis optical network
[单选题]DWDM全称为()。A . dense wavelength division multiplexingB . dense waveguide division multiplexingC . divided wavelength dimension multiplexingD . divided waveguide dimension mode
[单选题]WDM全称为()。A . wavelength division multiplexingB . waveguide division multiplexingC . wavelength dimension multiplexingD . waveguide division mode