（）是农业产业化最主要的外部特征。A、“系列化” B、“一体化” C、“社会化”

安置、处理实验服应（）。

A、离开实验室时，实验服必须脱下并留在实验室内

B、实验服不得穿着外出，更不能携带回家

C、用过的工作服应先在实验室中消毒，然后统一洗涤或丢弃

D、实验服最好能够完全扣住，长袖、背面开口的隔离衣防护效果更好

　　In 1826, a Frenchman named Niepce needed pictures for his business. But he was not a good artist. So he invented a very simple cameras. He put it in a window of his house and took a picture of his yard. That was the first photograph.

　　The next important date in the history! of photography was 1837. That year, Daguerre, another French, took a picture of his studio. He used a new kind of camera and a different process. In his pictures, you could see everything very clearly, even the smallest details. This kind of photograph was called a daguerreotype.

　　Soon, other people began to use Daguerre's process. Travelers brought back daguerreotypes from all around the world. People photographed famous buildings, cities and mountains.

　　In about 1840, the process was improved. Then photographers could take pictures of people and moving things. The process was not simple. The photographers had to cary lots of films and processing equipment. But this did not stop the photographers, especially in the United States. After 1840s daguerreotype artists were popular in most cities.

　　Mathew Brady was a well - known American photographer. He took many pictures of famous people. The pictures were unusual because they were very life - like and full of personality （个性）.

　　Brady was also the first preson to take pictures of war. His 1862 Civil War pictures showed dead soldiers and ruined cities. They made the war seem more real and more terrible.

　　In the 1880s, new inventions began to change photography... Photographers could buy films readymade in rolls（卷）. So they did not have to make the film themselves. Also, they did not have to process the film immediately. They could bring it back to their studios and develop it later meaning that they did not have to carry lots of equipment. And finally, the invention of the small handheld camera made photography less expensive.

　　With the small camera, anyone could be a photographer. People began to use cameras just for fun. They took pictures of their families, friends and favorite places. They called these pictures" snapshot".

　　Photographs became very popular in newspapers in the 1890s. Soon magazines and books also used documentary photographs. These pictures showed true events and people. They were much more real than drawing.

　　Photography also turned into a form of art by the end of the 10th century. Some photographs were not just copies of the real world. They showed ideas and feelings, like other art forms.

　　小题1:The passage is mainly about ________.

A．the inventoin of cameras

B．a kind of new art - photography

C．the development of photography

D．the important dates in the history of photography　　　小题2:The first pictures of a war were taken by________.

A．a French photographer in the 1840s

B．an American photographer in the 1860s

C．a German reporter in the 1880s

D．a French artist in the 1890s　　小题3:Photography can also be an art form because artists can ________.

A．take anything they like

B．keep a record of real life

C．take photos of the famous

D．show ideas and feeling in pictures

根据外商投资企业法律制度的有关规定，中外合资经营企业的下列文件中，应当经中国注册会计师验证和出具证明方为有效的有( )。

A．合营各方的出资证明书

B．合营企业的半年度会计报表

C．合营企业融资的项目评估报告

D．合营企业清算的会计报表

患者14岁，体格及智力发育与同龄人相似，已出现第二性征3年，一直无月经来潮。近1年常感下腹胀痛，每一至两月发作一次，每次持续3～4天，可自然缓解，近来偶于腹痛时伴有腰骶部胀痛及肛门坠胀，亦可自然缓解。2月前无意间发现下腹部有一包块。查体：身高160cm，体重50kg， * * 发育好，女性体态，其他系统查体未发现异常。

该患者诊断首先可考虑什么（）。

A.子宫内膜异位症

B.盆腔炎

C.先天性处女膜闭锁

D.卵巢肿瘤

E.先天性无 * *

F.子宫肌瘤

G.原发性闭经

H.继发性闭经

电流