葛洪《肘后方》提出“以海藻酒治疗甲状腺肿”,是因为海藻中()作用。A、硒 B、铁 C、锌

题型:单项选择题

问题:

葛洪《肘后方》提出“以海藻酒治疗甲状腺肿”,是因为海藻中()作用。

A、硒

B、铁

C、锌

D、碘

考点:食品营养学食品营养学题库
题型:单项选择题

阅读理解。

     Photographs are everywhere. They decorate (装饰) the walls of homes and are used in stores for sales

of different goods. The news is filled with pictures of fires, floods, and special events. Photos record the

beauties of nature. They can also bring things close that are far away. Through photos, people can see wild

animals, cities in foreign lands, and even the stars in outer space. Photos also tell stories.

     Reporting the news through photos is called photojournalism. At times photojournalists tell their stories

through a single picture. At other times, they use a group of pictures to tell a story. Each picture is like a

chapter in a book, which can do more than record the facts. It can also be a strong force for social change.

     Jacob Riis was among the first photojournalists. He took pictures of parts of New York City where the

poor lived. Riis believed that poverty (贫穷) caused crime, and he used photos to help him prove his point.

A few years later, the photos of small children working in factories by Lewis Hine shocked the public. Hine's

pictures helped bring about laws to protect such children.

     Hundreds of pictures may have to be taken in order to get one or two really good photos. It takes science

to have the photo come out clearly and art to make a photo that has a good design and expresses feeling.

Photojournalists make an actual record of what they see. A photo, however, can be both a work of art and an

actual record. It can record an important event as a beautiful or exciting picture.

     As historical and artistic documents (文献), photos can become more important over time. Today

photojournalists still have their pictures appear in newspapers and magazines. They also publish (发表) them

in books and on the Internet.

1. The underlined word "They" in the first paragraph refers to _____.

A. beauties

B. photos

C. goods

D. events

2. The photos of the small children by Hine show us that photos _____.

A. are also works of art

B. are popular ways of reporting news

C. often shock the public

D. can serve as a force for social change

3. What can we learn from the passage?

A. News with pictures is encouraging.

B. Photos help people improve

C. News photos mean history in a sense.

D. People prefer reading news with pictures.

4. The text is mainly about _____.

A. telling the story through picture

B. decorating the walls of homes

C. publishing historical papers

D. expressing feeling through pictures

题型:单项选择题

妊娠之后,可触腹以了角子宫大小与孕月是否相符,及胎位是否正常,妊娠足七个月时.子宫底应是()

A.脐上三横指

B.剑突下二横指

C.脐平

D.耻骨上三横指

E.以上都不是

题型:单项选择题

Ⅰ型变态反应()。

A.肺出血-肾炎综合征

B.风湿性心内膜炎

C.过敏性休克、哮喘

D.血清病

E.结核菌素试验阳性

题型:单项选择题

园设计质量原因引起的经济损失由哪一方赔偿______

A.设计单位
B.总包单位
C.施工单位
D.分包单位

题型:单项选择题

()钻进对孔壁及岩心破坏最大。

A.硬质舍金

B.钢粒

C.金刚石

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