问题
单项选择题
Both bus and tree topologies are characterized by the use of multipoint（）．For the bus，all stations attach，through appropriate hardware（）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（）．A transmission from any station propagates the length of the medium in both directions and can be received by all other（）．At each end of the bus is a（），which absorbs any signal，removing it from the bus．
At each end of the bus is a（）.
A．tap
B．repeater
C．terminator
D．concentrator
答案
参考答案：C
妻子和儿子。
两全的办法，找不出；我想拆散一家人，分成两路，各得其所，终不愿意。我决
定委屈儿子，因为我伴同他的时日还长。我说：“走大路。”