Traditional Internet access methods like d

题型:单项选择题

问题:

Traditional Internet access methods like dial-up were so slow that host computers were connected to the dial-up (71) at the customer premise over slow (72) ports.PPP was designed to run directly over these serial links. But with the advent of broadband Internet(73) technologies such as ADSL and cable modems there has been a considerable increase in the bandwidth delivered to the end users. This means that the host computers at the customer premise connect to the (74) or cable "modem" over a much faster medium such as Ethernet. It also means that multiple (75) can connect to the Internet through the sameconnection.

A.cables

B.hosts

C.servers

D.modems

考点:计算机软件水平考试中级嵌入式系统设计师计算机水平考试中级嵌入式系统设计师2007年下半年上午真题
题型:单项选择题

读人口出生率与死亡率的统计图。回答题。

小题1:根据图中数据判断,人口增长属于原始型的国家是(  )

A.甲

B.乙

C.丙

D.丁小题2:下列关于乙国可能存在的主要人口问题的叙述,正确的是(  )

A.人口增长快,人均资源占有量减少

B.人口增长快,加大环境人口容量

C.人口增长缓慢,城市化进程明显减慢

D.人口增长缓慢,出现了劳动力不足的情况小题3:在四个国家中,最可能体现欧洲芬兰国家目前的人口增长模式的是(  )

A.甲

B.乙

C.丙

D.丁

题型:单项选择题

轮轴由一个轴和一个大轮组成,并都绕固定的轴转动,使用轮轴,若动力作用在轮上,可以______力,若动力作用在轴上,可以________力(填 “省”或“费”)。

题型:单项选择题

应放在斗架高层的是()

A.月季花

B.磁石

C.甘草

D.薄荷

E.大黄炭

题型:单项选择题

使用耙装机必须遵守哪些规定?

题型:单项选择题

基于时间的竞争对生产运作管理有什么要求。

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