下列哪一种不能作为心脏超声造影剂的重要成分(). A.单纯碳水化合物颗粒 B.氟碳气

题型:单项选择题

问题:

下列哪一种不能作为心脏超声造影剂的重要成分().

A.单纯碳水化合物颗粒

B.氟碳气体

C.氧气

D.人体白蛋白

E.空气

考点:超声医学与技术(医学高级)心血管系统心血管系统题库
题型:单项选择题

根据短文内容,  选择正确答案。

  Wu Weiyang is a Junior 3 student at the High School Attached to Beijing

University of Chemical Technology. He has been a fan of photography since

primary school, so he takes his camera to school every day. In the early morning

of March 18, 2007, on his way to school, Wu Weiyang saw the morning sunlight

shine on the Bird's Nest. It was very beautiful. He took out his camera and took a

snapshot (快照) of the scene. From then on, photographing the Bird’s Nest had

become one of his habits. He takes one picture every day. So far, he has taken

more than 300 pictures of it." I am lucky because where I live is an excellent

spot for photos of the Bird’s Nest," says Wu. "I can take pictures whenever I

want." His school collects Wu’s photos. The series (系列) is called "The

Footprints (脚印) of the Olympics." Wu had a wish. On August 8, 2008, the

opening day of the Beijing Olympics, he wanted to take pictures of the Bird's

Nest all day." I took pictures from sunrise till sunset, until the Olympic torch

(火炬) was lit," he said.

1. Which of the following is NOT true about WuWeiyang?

A. He is a primary school student.

B. He lives near the Bird’s Nest.

C. His hobby is taking photos.

D. He has been a fan of photography for at least three years.

2. When did Wu first take a photo of the Bird's Nest?

A. On March 18, 2008.        

B. Earlier than January, 2007.

C. Later than January, 2007.

D. On January 18, 2007.

3. Why does Wu say he is lucky?

A. Because he has a camera.

B. Because he lives near the Bird's Nest.

C. Because his photos are collected by his school.

D. Because he won a prize in a photo competition.

4. What did Wu do on August 8, 2008?

A. He watched the games all day.

B. He took photos of all kinds of games.

C. He took photos of the Bird’s Nest all day.

D. He took photos of his school until it was dark.

5. The passage mainly tells us about _____.

A. a boy who takes photos of the Bird’s Nest

B. a boy who likes collecting photos

C. a series of photos of the Bird’s Nest

D. the footprints of the Beijing Olympics

题型:单项选择题

原粒细胞的核仁有()

A.1~2个

B.2~5个

C.1个

D.2个

E.2~3个

题型:单项选择题

骨骼肌中含量最多的CK同工酶是

A.CK-MM
B.CK-MB
C.CK-BB
D.CK-MiMi
E.AK

题型:单项选择题

审计人员应当如何评价抽样结果并形成审计结论?

题型:单项选择题

矿山安全技术

粉尘的分散度是指粉尘整体组成中各种粒级的尘粒所占的百分比。粉尘组成中,小于( )μm的尘粒所占的百分数越大,对人的危害越大。

A.2

B.3

C.4

D.5

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