建筑电气工程中的电缆桥架均为钢制产品，较少采用在工业工程中为了防腐蚀而使用的非金属桥

前运算阶段儿童所不具有的一项特征是 ( )

A．一切以自我为中心

B．尚未获得物体守恒的概念

C．思维具有不可逆性

D．已经可以很好地把自己和外部世界区分开来

阅读理解。

     A good modern newspaper is an extraordinary piece of reading. It is remarkable first for

what it contains: the range of news from local crime to international politics, from sports to

business to fashion to science, and the range of comment and special features (特写) as well,

from editorial page to feature articles and interviews to criticism of books, art ,theatre, and

music. A newspaper is even more remarkable for the way one reads it: never completely,

never straight through, but always by jumping from here to there, in and out, glancing at one

piece, reading another article all the way through, reading just a few paragraphs of the next.

A good modern newspaper offers a variety to attract many different readers, but far more

than any one reader is interested in. What brings this variety together in one place is its

topicality (时事性),its immediate relation to what is happening in your world and your locality

now. But immediacy and the speed of production that goes with it mean also that much of what

appears in a newspaper has no more than transient (短暂的) value. For all these reasons, no

two people really read the same paper: what each person does is to put together, out of the

pages of that day's paper, his own selection and sequence, his own newspaper. For all these

reasons, reading newspapers efficiently, which means getting what you want from them without

missing things you need but without wasting time, demands skill and self-awareness as you modify

and apply the techniques of reading.

1. A modern newspaper is remarkable for all the following except its         .

A. wide coverage                  

B. uniform style

C. speed in reporting news          

D. popularity

2. According to the passage, the reason why no two people really read the"same"newspaper is that         .

A. people scan for the news they are interested in

B. different people prefer different newspapers

C. people are rarely interested in the same kind of news

D. people have different views about what a good newspaper is

3. It can be concluded from the passage that newspaper readers         .

A. apply reading techniques skillfully

B. jump from one newspaper to another

C. appreciate the variety of a newspaper

D. usually read a newspaper selectively

4. A good newspaper offers"a variety"to readers because          .

A. it tries to serve different readers

B. it has to cover things that happen in a certain locality

C. readers are difficult to please

D. readers like to read different newspaper.

5. The best title for this passage would be"         "

A. The importance of Newspaper Topicality

B. The Characteristics of a Good Newspaper

C. The Variety of a Good Newspaper

D. Some Suggestions on How to Read a Newspaper

欧洲中世纪的谚语说：“我的附庸不是我的附庸。”对此话理解正确的是

①说明当时存在封建等级制度

②当时封臣只承认自己直接受封的领主为封主

③这种关系在封建主之间造成一团乱麻般的权利义务关系

④这种关系使封建主及农奴之间关系井然，社会稳定

A．①②④

B．①②③　　　

C．②③④　　

D．①③④

倾注法洗涤沉淀就是一开始就将沉淀搅混后进行过滤。（）

热轧带肋钢筋力学性能检测的试样数为（）根。

A.1

B.2

C.3

D.4