女性,45岁。慢性咳喘近10年,症状加重伴神志恍惚1天入院。体检两肺广泛哮鸣音和肺底

题型:单项选择题 A1/A2型题

问题:

女性,45岁。慢性咳喘近10年,症状加重伴神志恍惚1天入院。体检两肺广泛哮鸣音和肺底湿啰音。动脉血气(吸氧1.5L/min):pH7.26,PaCO210.6kPa(80mmHg),PaO28.6kPa(65mmHg)。下列治疗措施中哪项是比较合理的()

A.尼可刹米静脉滴注以改善通气

B.静脉滴注5%碳酸氢钠,纠正酸中毒

C.积极应用支气管舒张剂吸入,必要时加用激素

D.气管插管机械通气

E.A+B+C联合使用

考点:呼吸内科专业知识呼吸衰竭呼吸衰竭题库
题型:单项选择题 A1/A2型题

某项目建设期两年,第1年贷款100万元,第2年贷款200万元,贷款分年度均衡发放,年利率10%,则建设期贷款利息为( )万元。

A.30.0
B.15.0
C.25.5
D.25.0

题型:单项选择题 A1/A2型题

阅读理解。

     You may have heard the term "the American Dream". In 1848, James W. Marshall found gold in

California and people began having golden dreams. That 19th century "American Dream" motivated

the Gold Rush and gave California its nickname of the "Golden State".

    The American Dream drove not only 1800s gold-rush prospectors(采矿者)but also waves of

immigrants throughout that century and the next. People from Europe, and a large number of Chinese,

arrived in the US in the 19th century hoping that in America they would find gold in the streets. But

most, instead, worked as railroad laborers. They created the oldest Chinatown, in San Francisco, and

gave the city a Chinese name "the old gold hill".

     In the 20th century, some critics said that it was no longer possible to become prosperous through

determination and hard work. Unfair education for students from poor families and racial discrimination

almost made the American Dream a nightmare(噩梦).

     Then, in the 1990s, California saw a new wave of dreamers in Silicon Valley. People poured their

energy into the Internet. This new chapter of the American Dream attracted many business people and

young talents from China and India to form start-ups and seek fortune in America. Better pay, a nice

house, and a rising standard of living will always be attractive. However, the new American Dream is

no longer just about money. It encourages Americans to consume wisely to protect the environment,

improve the quality of life, and promote social justice.

    The Governor of California, Arnold Schwarzenegger has become the model of the new American

Dream. After years of hard work, he grew from a poor young man from Austria into a super movie

star and then a governor. Many people hope his story can save the American Dream and give California

a brighter future.

1. The "American Dream" was appealing to _______________.

A. Americans only.              

B. Chinese and Indians .    

C. Europeans.                  

D. people all over the world

2. It can be inferred that ____________.  

A. America's golden dream could never be realized

B. different times have different themes of the American dream

C. America's golden dream brought great fortune to Chinese immigrants

D. determination and hard work are the best way to realize the American dream

3. Why did most of the early immigrants work as railroad laborers?

A. Because they could earn more money as railroad laborers.

B. Because they thought railroad was the first step to find gold.

C. Because railroad laborers were greatly honored at that time. 

D. Because they had to make a living by working as railroad laborers.

4. The underlined sentence in the last paragraph indicates that ___________.

A. most of the immigrants to America don't reach their previous goals

B. the dream of seeking fortune in America is easy to realize

C. the success of Arnold Schwarzenegger is a common example of the immigrants

D. the immigrants have made great contributions to California

5. Which may be the best title of the passage?

A. Waves of Immigrants to America            

B. Hard Work Leads to Success

C. Changes of America's Golden Dream        

D. Make Fortunes Abroad

题型:单项选择题 A1/A2型题

下面关于大气臭氧层的叙述中不正确的是[ ]

A.臭氧层能散射太阳光中的紫外线,使地面生物免受其害    

B.大量使用冰箱和空调,会加快臭氧层的破坏    

C.超音速飞机迅速发展,含氮废气的大量排出破坏了臭氧层

D.目前大气臭氧层正在遭到破坏,形成了“臭氧层空洞”

题型:单项选择题 A1/A2型题

配制2%的盐酸普鲁卡因溶液200ml,需要加多少氯化钠调节等渗,已知盐酸普鲁卡因的冰点下降值为0.24()

A、0.48g

B、0.96g

C、0.69g

D、4.8g

E、9.6g

题型:单项选择题 A1/A2型题

凯式带是在内皮层的()上发生的栓质化带状加厚。

A.平周壁

B.内切向壁

C.外切向壁

D.垂周壁

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