结构化布线系统分为六个子系统,其中水平子系统() A.由各种交叉连接设备以及集线器和

题型:单项选择题

问题:

结构化布线系统分为六个子系统,其中水平子系统()

A.由各种交叉连接设备以及集线器和交换机等设备组成

B.连接了干线子系统和工作区子系统

C.由终端设备到信息插座的整个区域组成

D.实现各楼层设备间子系统之间的互连

考点:计算机软件水平考试高级系统架构设计师2014年计算机技术与软件专业技术资格高级系统架构设计师下半年上午试卷
题型:单项选择题

常表现为呼气性呼吸困难的疾病是()。

A.气管异物

B.肺气肿

C.支气管哮喘

D.严重的肺炎

E.肺结核

题型:单项选择题

仿照例句写句子。

例句:母爱是一缕阳光,让你的心灵即使在寒冷的冬天也能感到温暖如春;母爱是一泓清泉,让你的情感即使蒙上岁月的风尘依然纯洁明净。  

仿写:父爱是__________________________________________________;      

   父爱是__________________________________________________

题型:单项选择题

The Chinese invented paper in 105 A. D. They mixed the bark of a tree and rags (破布) with water, put a screen into the mixture, and lifted out a thin piece of wet paper. They dried the paper in the sun.

The Chinese kept their secret of how to make paper until a war with Muslims in the ninth century. The art of papermaking soon spread throughout the Muslim world.

The Mayan Indians in Central America and Pacific Islanders also discovered how to make paper, but their knowledge never spread to the rest of the world.

For centuries, all paper was made by hand. Rags were the main material. Then a French scientist discovered that people could make paper from wood, too. Finally, in the eighteenth century. a Frenchman invented a machine to make paper from wood.

小题1:Who discovered how to make paper?

A.The Chinese.

B.The Pacific Islanders.

C.The Mayan Indians.

D.All of the above.小题2: When did the Chinese invent paper according to the passage?

A.About 1 ,800 years ago.

B.About 1, 900 years ago.

C.About 2, 000 years ago.

D.About 2, 100 years ago.小题3: How was papermaking introduced into the rest of the world from China?

A.Through wars.

B.Through the Muslims.

C.Through the Mayan Indians.

D.Through the Pacific Islanders.小题4:Which of the following is the best title for this passage?

A.The Invention of Paper.

B.The History of Papermaking.

C.Different Ways of Making Paper.

D.The Invention of a Papermaking Machine.

题型:单项选择题

有关下背痛,不正确的描述是()

A.是肌肉骨骼损伤中最常见的一种

B.半数以上的劳动者在工作年龄都曾患过下背痛

C.负重过程中突然转身也是损伤的常见原因

D.坐姿作业不能发生下背痛

E.以站立负重作业发病率最高

题型:单项选择题

输入植物种子、种苗及其他繁殖材料的检疫审批,由国家质检总局负责。()

更多题库