Internet网上的每一台计算机是通过（ ）来区分的。A．登录名 B．域名 C．用

Could vou tell me _____?[ ]

A. when will the next bullet train leave for Nanjing

B. when the next bullet train will leave for Nanjing

C. when would the next bullet train leave for Nanjing

D. when the next bullet train would leave for Nanjing

80X86CPU可访问的I/O地址空间有______。

A．4GB

B．1MB

C．64KB

D．1KB

Which of the following statements about price elasticity is most likely FALSE（）

A. The elasticity of demand of a good increases over time.

B. If the price of gasoline increases, total expenditures on gasoline will increase.

C. If the price of a brand of toilet paper increases, total expenditure on that brand of toilet paper will increase.

电缆配盘的目的是（）。

A、减少线路衰耗

B、增加线路不均匀性

C、减少串音

D、保证传输质量和合理的经济效益

我国古建筑防火工作的重要性有哪些？