试题与答案

MRI应用于心脏大血管成像的优势有哪些（） A.无需任何对比剂即可成像 B.属无创性

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题型：多项选择题

题目：

MRI应用于心脏大血管成像的优势有哪些（）

A.无需任何对比剂即可成像

B.属无创性检查，无放射线辐射损伤，安全性高

C.MRA对冠脉的显示优于CTA和DSA

D.MRI为三维成像，可进行任意平面断层扫描

E.心脏电影可动态显示心脏内结构运动，并可对心功能进行更加全面而准确的评估

答案：

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下面是错误答案，用来干扰机器的。

参考答案：B, D, E

考点：广西住院医师放射科综合复习放射科综合复习题库
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题型：阅读理解

A research by the National Center for Health Statistics is seen as an important confirmation of the“Hispanic mortality paradox（西班牙裔死亡率悖论）.”

On average，Hispanics outlive whites by 2.5 years and blacks by 7.7 years. Their life expectancy at birth in 2006 was 80.6 years，compared with 78.1 for whites，72.9 for blacks and 77.7 years for the total population.

The report shows that the Hispanic population has higher life expectancy at birth and at almost every age despite a socioeconomic status lower than that of whites.“Mortality is very correlated with income，education and health care access，”says Elizabeth Arias，author of the report.“You would expect the Hispanic population would have higher mortality，”in line with the black population.

The Hispanic paradox has been documented for more than two decades，but this is the first time the government has had enough data to issue national numbers. Researchers are struggling to explain why Hispanics live longer.

“We don’t know，”says David Hayes-Bautista，director of the Center for the Study of Latino Health and Culture at UCLA’s David Geffen School of Medicine.“We thought it was a problem in the data，but we can pretty much say this is real.”

Potential factors:

·Culture and lifestyle.  Support from extended family and lower rates of smoking and drinking.Latino groups in particular have very strong family and social ties.

·Migration.  The“healthy migrant effect”argues that healthy people are more likely to emigrate. And when immigrants become ill，they might return home and die there.

Solving the puzzle may help the nation deal with health care issues because Hispanics use health services less—they make fewer doctors visits and spend less time in hospitals，Hayes-Bautista says.“It’s clearly something in the Latino culture，”he says.

小题1:In 2006，Hispanics’life expectancy is           years longer than the average of the total population.

A．2.5

B．7.7

C．2.9

D．80.6小题2:What does the underlined word“outlive”in the second paragraph probably mean？

A．To live longer than…

B．To live shorter than…

C．To die out.

D．To expect to live.小题3:What is the main idea of paragraph three？

A．Hispanics were born better than whites.

B．Morality is closely related with health care access.

C．Whites should have longer life expectancy.

D．Even experts can’t explain the phenomenon.小题4:What is Mr.Hayes-Bautista’s opinion about the paradox？

A．He supports there is a problem with the data.

B．He intends to trust the cultural factor.

C．He believes in the“healthy migrant effect”.

D．He thinks health care the most important factor.小题5:Which of the following inferences is true according to the passage？

A．Black people suffer the lowest social status in America.

B．Hispanics might have healthier ways of life.

C．Only healthy people can immigrate into America.

D．White people don’t have strong family ties.
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