【简答题】TCP/IP的汉语意思是_______________________。[填空(1)]
【单选题】从空间的角度解决多路信号同时复用单一介质的方法是( ).
【单选题】通常在光纤传输中使用的多路复用技术是(20)。
【单选题】通常在光纤传输中使用的多路复用技术是______。
【单选题】在喹诺酮类抗菌药的构效关系中,哪个是必需基团
【单选题】The data rate of the multiplexed line in STDM is .
A.
equal to the sum of data rates of the attached devices
B.
exceed the sum of data rates of the attached devices
C.
less than the sum of data rates of the attached devices
D.
not less than the sum of data rates of the attached device