【单选题】布线系统与(36)紧密相关。光缆是用(37)携带信息的。光纤有5个优点:性能好、覆盖范围广、支持更多用户、安全性好以及(38)。
【简答题】You are required to write about 200 words on the following topic: 'To what extent is the use of animals in scientific research acceptable'.
【单选题】The extent of the damage could not be ______ though I inspected it with the Chief Stevedore in charge.
【单选题】A:What’s the extent of the delay? B: ( )
【单选题】To what extent will future scientific discoveries make possible the ______ of human life span?
【单选题】To what extent will future scientific discoveries make possible the______of the human life span?
【简答题】●布线系统与 (36) 紧密相关。光缆是用 (37) 携带信息的。光纤有5个优点:性能好、覆盖范围广、支持更多用户、安全性好以及 (38) 。 (36) A.楼群 B.局域网 C.传输介质 D.网络体系结构 (37) A.光信号 B.电信号 C.光信号和电信号 D.既不是光信号也不是电信号 (38) A.可发出有规律的电磁干扰 B.不受电磁干扰 C.可发出随机的电磁干扰 D.以上答案都不对