A . single model fiber
B . single mode fiber
C . single multiple fiber
D . step mode fiber
[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]CIC全称为()A . Channel Identity CodeB . Circuit Identity CodeC . Cell Identity CodeD . Clothes In Closet
[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