更多"Modem plant breading is largely bas"的相关试题:
[单项选择]
Some cities have planned their transportation systems for ear owners. That is what Los Angeles did. Los Angeles decided to build highways for cars rather than spending money on public transportation.
This decision was suitable for Los Angeles. The city grew outward instead of upward. Los Angeles never built many tall apartment buildings. Instead, people live in houses with gardens.
In Los Angeles, most people drive cars to work. And every car has to have a parking space. So many buildings where people work also have parking tots.
Los Angeles also became a city without a Central Business District (CBD). If a city has a CBD, crowds of people rush into it every day to work. If people drive to work, they need lots of road space.
So Los Angeles developed several business districts and built homes and other buildings in between the districts. This required more roads and parking spaces.
Some people defend this growth pattern. They say Los Angeles
A. there is no public transportation system
B. more money is spent on highways for cars
C. more money is spent on public transportation systems
D. public transportation is more developed than in other cities
[单项选择]GREENHOUSE: PLANT : :
A. bottle: tonic
B. incubator: microorganism
C. orchard: underbrush
D. pipeline: gas
E. washroom: hygiene
[填空题]数据通信终端包括窄带MODEM、ADSL-MODEM和（）。
[单项选择]What is planned for the continent
A. Building dams along the coasts.
B. Setting up several summer resorts along the coasts.
C. Mapping the coast and the whole territory.
D. Setting up permanent bases on the coasts.
[判断题]Planned conversations usually degenerate into silence or involve only a small number of students.（）
[单项选择]The planned development of the deserted island filled the islanders with ______ hope.
A. eternal
B. ceaseless
C. infinite
D. incessant
[单项选择]Cable MODEM是常用的宽带接入互联网的方式之一。下面关于Cable MODEM的叙述中，错误的是（）。
A. 它利用现有的有线电视电缆作为传输介质
B. 它的带宽较高，数据传输速度较快
C. 用户可以始终处于连线状态，无需像电话MOBEM那样拨号后才能上网
D. 上网时不能收看电视节目
[单项选择]Cable Modem是宽带接入方式之一。下面关于Cable Modem接入方式的叙述中，错误的是
A. 它利用现有的有线电视电缆线作为传输介质
B. 它利用一根同轴电缆可以在上网的同时收看电视节目
C. 用户可以始终处于连线状态，无需像普通Modem那样拨号后才能上网
D. 它的传输速度很快，并且不会因为同一条线路上用户数的增加而影响该线路其他用户的带宽
[单项选择]Cable MODEM是宽带接入方式之一。下面关于Cable MODEM接入方式的叙述中，错误的是( )。
A. 它利用现有的有线电视电缆线作为传输介质
B. 它利用一根同轴电缆可以在上网的同时收看电视节目
C. 用户可以始终处于连线状态，无需像普通MODEM那样拨号后才能上网
D. 它的传输速度很快，并且不会因为同一条线路上用户数的增加而影响该线路其他用户的带宽
[单项选择]Modem是家庭PC机利用电话线上网的常用设备之一。下面关于Modem的叙述中，错误的是
A. Modem既能将数字信号变换成模拟信号，也能把模拟信号恢复成数字信号
B. Modem的数据传输速率一般是33.6kbps或56kbps
C. Modem工作时需遵守一系列的协议，包括调制协议、差错控制协议和数据压缩协议等
D. 有一种“软Modem”，其功能都是由软件完成的，不需要专门的硬件
