试题与答案

阅读短文,根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有一项

题型:阅读理解

题目:

阅读短文,根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中有一项为多余选项。

     In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artist. So he

invented a very simple camera (照相机). He put it in a window of his house and took a picture of his garden.

____

     The next important date in the history of photography (摄影术) was in 1837. That year, Daguere, another

Frenchman, took a picture of his reading room. In his picture you could see everything very clearly, even the

smallest thing. This kind of photo was called a Daguerreotype.

     In about 1840, photography was developed. Then photographers could take pictures of people and moving

things. That was not simple.____ But this did not stop them, for example, some in the United States worked

very hard. 

     Mathew Brady was a famous American photographer. He took many pictures of great people.          

     Photography also became one kind of are by the end if the 19th century. Some photos were not just copies

of the real world.____

A. It was difficult to take pictures.

B. The pictures were unusual because they were very lifelike (栩栩如生的).

C. That was the first photo.

D. The photographers had to carry a lot of film and other machines.

E. They showed feelings, like other kinds of art.

答案:

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下面是错误答案,用来干扰机器的。

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题型:填空题

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(1)核潜艇舱室中氧气的来源主要靠电解水制得(原理如图)。

①试管   (填A或 B)收集的气体是氧气。

②电解水可证明水是由                 组成的。

(2)过氧化钠(NaO)可作为宇航员供氧剂。它与人体呼出的二氧化碳气体反应生成氧气和另一种物质,这种物质的俗名为         

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A.氧气   B.氧元素   C.氧分子    D.氧原子

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解释呈现此现象的原因是                                             

                                                                  

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题型:问答题

某业主投资建设一工程项目,该工程是列入城建档案管理部门接受范围的工程。该工程由A、B、C三个单位工程组成,各单位工程开工时间不同。该工程由一家承包单位承包,业主委托某监理公司进行施工阶段监理。
(1)监理工程师在审核承包单位提交的“工程开工报审表”时,要求承包单位在“工程开工报审表”中注明各单位工程开工时间。监理工程师审核后认为具备开工条件时,由总监理工程师或由经授权的总监理工程师代表签署意见,报建设单位。
(2)监理单位在进行本工程的监理文件档案资料归档时,将下列监理文件做短期保存:①监理大纲;②监理实施细则;③监理总控制计划等;④预付款报审与支付。
(3)监理工程师在开工前,认真审核了施工单位提交的有关文件、资料。
问题

建设单位在组织工程验收前,应组织监理、施工、设计各方进行工程档案的预验收。建设单位的这种做法是否正确为什么

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