B．oth 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．

（71）

A．medium

B．connection

C．token

D．resource

[单选题]B．oth bus and tree topologies are characterized by the use of multipoint().A．mediumB．connectionC．tokenD．resource

[单选题,共用题干题] Both bus and tree topologies are characterized by the use of multipoint (1).For the bus, all stations attach, through appropriate hardware (2) known as a tap, directly to a linear transmission medium, or bus. Full-duplex operation between the

[单选题] 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 stati

[单选题]As the bus came round the corner, it ran ______ a big tree by the roadside.

[单选题]As the bus came around the corner,it ran()a big tree by the roadside.汽车开到转角

[单选题]In Wordsworth’s view，“habits” is characterized by beingA．casual.B．familiar.C．mechanical.D．changeable.

[名词解释] gene tree

[名词解释] 树（tree）

[单选题]There’s lots of fruit ________ the tree. Our little cat is also in the tree

[名词解释] molecular phylogenetic tree