问题 单项选择题 共用题干题

患者,男,40岁,以低钾性周期性麻痹样表现就诊。有尿量增多,骨痛症状。查尿常规正常,尿pH值6.5,血CO2CP18mmol/L,血钾2.5mmol/L,血氯108mmoL/L。

提问:此时对诊断最有帮助的检查是()

A.肾功能试验

B.骨骼X线摄片检查

C.氯化铵负荷试验

D.碳酸氢钠负荷试验

E.以上都不是

答案

参考答案:C

单项选择题
阅读理解

阅读理解。

     When other nine-year-old kids were playing games, she was working at a petrol station. When other teens

were studying or going out, she struggled to find a place to sleep on the street. But she overcame these terrible

setbacks to win a highly competitive scholarship and gain entry to Harvard University. And her amazing story

has inspired a movie, "Homeless to Harvard:The Liz Murray Story", shown in late April.

     Liz Murray, a 22-year-old American girl, has been writing a real-life story of willpower and determination.

Liz grew up in the shadow of two drug-addicted parents. There was never enough food or warm clothes in

the house. Liz was the only member of the family who had a job. Her mother had AIDS and died when Liz was

just 15 years old. The effect of that loss became a turning point in her life. Connecting the environment in

which she had grown up with how her mother had died, she decided to do something about it.

     Liz went back to school. She threw herself into her studies, never telling her teachers that she was

homeless. At night, she lived on the streets. "What drove me to live on had something to do with understanding, My understanding was that there was a whole other way of being. I had only experienced a small part of

society," she wrote in her book Breaking Night.

     She admitted that she used envy to drive herself on. She used the benefits that come easily to others, such

as a safe living environment, to encourage herself that "next to nothing could hold me down". She finished high

school in just two years and won a full scholarship to study at Harvard University. But Liz decided to leave her

top university a couple of months earlier this year in order to take care of her father, who has also developed

AIDS. "I love my parents so much. They are drug addicts. But I never forget that they love me all the time."   

     Liz wants moviegoers to come away with the idea that changing your life is "as simple as making a decision".

1. The word "setback" in the first paragraph most probably means _____?   

A. danger  

B. difficulty  

C. unhappiness  

D. disaster

2. What's the best title of the passage?

A. Liz's Harvard Dream

B. Bitter Childhood of Liz

C. Liz's Love for Her Parents

D. Liz's Struggle for Her Life

3. What actually made Liz throw herself into her studies?   

A. Her parents' addiction to drugs  

B. Her mother' s disease   

C. Lack of food and clothes  

D. Her mother' s death

4. According to the passage, which is NOT true about Liz?   

A. strong-willed

B. envious

C. determined

D. respectful