患者,男,50岁,乏力1年,牙龈出血1周。体格检查:淋巴结不大,脾肋下1cm,血红蛋

题型:单项选择题

问题:

患者,男,50岁,乏力1年,牙龈出血1周。体格检查:淋巴结不大,脾肋下1cm,血红蛋白75g/L,白细胞3×109/L,血小板60×109/L,血涂片见巨大血小板和巨大红细胞,骨髓原始粒细胞0.07,可见小巨核细胞,幼红细胞有明显巨幼样变。用雄激素、维生素B12等治疗无效,本例应诊断为()

A.再生障碍性贫血

B.巨幼细胞性贫血

C.骨髓增生异常综合征

D.脾功能亢进

E.恶性组织细胞病

考点:血液病学(医学高级)血液病学综合练习血液病学综合练习题库
题型:单项选择题

细粒棘球绦虫属于()

A.假叶目

B.圆叶目

C.复殖目

D.小杆目

E.尖尾目

题型:单项选择题

回首2010年中国 * * 路,一大批旨在肃贪倡廉的新规不断出炉,对于贪腐官员,以毫不手软的态度查办惩治。媒体报道,在4名省部级高官落马,12名省部级官员也相继在今年领刑。这说明

①我国公民在法律面前一律平等     ②遵守宪法和法律是公民的政治义务

③我国必须坚持人民民主专政       ④我国司法机关依法行政、公正司法

A.①②③

B.①②④

C.①③④

D.②③④

题型:单项选择题

按照《聚氯乙烯树脂中残留氯乙烯单体含量测定方法》(GB/T4615—1984),在测定氯乙烯单体含量时,应确保有一个与测试样含量相近的标准样,测定时,测试样和标准样应取相同量的气体,并在仪器同一灵敏度下分析。

题型:单项选择题

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 .That was the first photo.

The next important date in the history of photography was 1837. That year, Daguerre, another Frenchman, took a picture of his studio. He used a new kind of camera and a different processs. 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. Travellers brought back daguerreotypes from all around the world. People photographed famous buildings, cities and mountains.

In about 1840, the process was improved. Now photographers could take pictures of people and moving things. The process was not simple. The photographers had to carry lots of film and processing equipment. But this did not stop the photographers, especially in the United States, where from the 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.

Brady was also the first person 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 film readymade in rolls. So they did not have to make 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 favourite places. They called these pictures "snapshots".

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 drawings.

Photography had turned into a form of art by the beginning of the 20th 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 invention of cameras

B.a kind of new art -- photography

C.the development of photography

D.the different uses of cameras in history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: Which of the following statements is TRUE about the photography in the 19th century?

A.It was mainly based on the invention of the first photograph.

B.Photographers were popular in the United States because they carried lots of equipment.

C.Photographers used to make film themselves and developed it immediately after taking a photo.

D.Small handheld cameras made it possible for anyone to become a gifted photographer.小题4:In which order are the following statements mentioned in the passage?

a. Photographs became popular in newspapers.

b. Photographers carried processing equipment when taking pictures.

c. The invention of small handheld cameras made photography easier.

d. Daguerre invented a kind of photograph called daguerreotype.

e. Brady took pictures of famous people.

A.e,a, d, b, c

B.d, b, e, c, a

C.b, e, c, a, d

D.d, c, e, a , b小题5: 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 feelings in pictures

题型:单项选择题

二行程发动机常采用的润滑方式是()。

A.混合润滑和分离润滑

B.飞溅润滑

C.强制润滑

D.综合润滑

更多题库