【单选题】用一个共享式集线器把几台计算机连接成网,这个网是( )
【简答题】Poorly developed countries of low population density may have
【多选题】用一个共享式集线器把几台计算机连接成网,对于网络的结构,下列说法正确的是:
A.
从物理结构看是星型连接,而从逻辑结构看是总线型连接
B.
从物理结构看是星型连接,而从逻辑结构看也是星型连接
【单选题】用一个共享式集线器把几台计算机连接成网,对于网络的结构,下列说法正确的是( )
A.
从物理结构看是星型连接,而从逻辑结构看是总线型连接
B.
从物理结构看是星型连接,而从逻辑结构看也是星型连接
【简答题】These people have developed a very effective process for handling sales.
【简答题】Manufacturers have developed _______________ to correct errors like receiving signal of the same frequency from a strange device.
【单选题】The members of the European Economic Community have developed fast because they _______.
A.
share their resources and produce more goods
B.
can again take the place as a leader in the world
C.
forget the differences in their languages and customs
D.
have become strong competition against the U.S.
【单选题】用一个共享式集线器把几台计算机连接成网 , 这个网的特点是( )。
A.
物理结构是星型连接 , 而逻辑结构是总线型连接
B.
物理结构是星型连接 , 而逻辑结构也是星型连接
【多选题】7用一个共享式集线器把几台计算机连接成网,对于网络的结构,下列说法正确的是
A.
从物理结构看是星型连接,从逻辑结构看是总线型连接
B.
从物理结构看是星型连接,从逻辑结构看也是星型连接
【单选题】Nonhuman animals have no culture because they don't have a developed brain.