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  第73题      
  章/节:   专业英语       

 
Both bus and tree topologies are characterized by the use of multipoint(71).For the bus, all stations attach, through appropriate hardware(72)known as a tap, directly to a linear transmission medium, or bus. Full-duplex operation between the station and the tap allows data to be transmitted onto the bus and received from the(73).A transmission from any station propagates the length of the medium in both directions and can be received by all other(74).At each end of the bus is a(75).which absorbs any signal, removing it from the bus.
 
 
  A.  tree
 
  B.  bus
 
  C.  star
 
  D.  ring
 
 
 

 
  第75题    2017年下半年  
   51%
The Hypertext Transfer Protocol , the Web's (71)protocol , is at the heart of the Web. HTTP is implemented in two prog..
  第73题    2015年下半年  
   57%
VPN connections allow users working at home or on the road to connect in a secure fashion to a (71) corporate server u..
  第72题    2009年上半年  
   62%
An internet is a combination of networks connected by (71) . When a datagram goes from a source to a (72) . it will prob..
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