问题 单项选择题

联用治疗细菌性心内膜炎

A.链霉素与异烟肼
B.链霉素与磺胺嘧啶
C.青霉素与链霉素
D.青霉素与磺胺嘧啶
E.氯霉素与丙种球蛋白

答案

参考答案:C

解析: 本组题考查抗菌药物联合应用。
链霉素或四环素与磺胺类联用治疗布氏杆菌病。链霉素与异烟肼联用治疗肺结核。青霉素与链霉素联用治疗亚急性细菌性心内膜炎。注意其他相关联用:磺酰脲类抗糖尿病药由于有较高的血浆蛋白结合率,故能与其他药物(如保泰松、水杨酸钠、吲哚美辛、双香豆素等)竞争与血浆蛋白结合,使游离药物浓度升高,诱发低血糖反应。相反,氯丙嗪、噻嗪类利尿药、口服避孕药、利福平、苯巴比妥、糖皮质激素等,使其将血糖作用减弱。多粘菌素B与某些抗生素联用治疗绿脓杆菌感染。氯霉素与丙种球蛋白联用治疗麻疹。四环素类与制霉菌素联用治疗某些四环素类敏感菌感染。头孢菌素与氨基糖苷类、青霉素类抗生素之间有协同作用。红霉素与克林霉素互相竞争结合部位,呈药理性拮抗作用,不宜合用。氨基苷类与青霉素或氨苄青霉素合用对肠球菌和链球菌,与广谱青霉素(羧苄西林、替卡西林)合用对绿脓杆菌,都能起协同作用。

阅读理解

The Eiffel Tower was built in 1889, in memory of the 100th birthday of the French Revolution. The Prince of Wales, later King Edward VII of England, opened the tower. Of the 700 suggestions that were handed in, Gustave Eiffel’s was chosen.

However, at first, it was not well accepted by all and a group of people — including many well-known writers and painters at that time — were fiercely against its design.

Being about 300 meters in height, and 7,000 tons in weight, it was the world’s tallest building until 1930. It was a great project for France. 300 workers took two years to build it. It isn’t an ordinary building, since it is almost made of steel. For example, its body moves around at most 12 cm in heavy wind. Moreover, its height changes up to 15 cm according to the temperature.

It was almost destroyed in 1909, but was saved because of its antenna(天线), which is used for communication at that time. Beginning in 1910 it became part of the International Time Service. French radio and French television have also made good use of its height.

The Eiffel Tower has also seen a few strange things. In 1923, a journalist rode a bicycle down from the first level of it. And in 1954, a mountain climber climbed on top of it and tried to measure its exact height.

Anyway, although its birth was difficult, it is now well accepted all over the world. It has been considered as one of the symbols of Paris.

44. The passage mainly tells us ________.  

A. the history of the Eiffel Tower

B. some information about its design

C. what the Eiffel Tower was used for

D. how it became one of the symbols of Paris

45. Which of the following statements is TRUE according to this passage?

A. Many people couldn’t accept the Eiffel Tower at the beginning.

B. It was the world’s tallest building for hundreds of years.

C.A journalist rode down from the Eiffel Tower in 1954.

D.The Eiffel Tower was saved because of its height.

46. The French Revolution took place in _______.

A. 1889    B. 1923     C. 1789     D. 1930

阅读理解

阅读理解。

     In a six-week study, experts found people who played online games designed to improve their cognitive

(认知的) skills didn't get any smarter.

     More than 8,600 people aged 18 to 60 were asked to play online brain games designed by the researchers

to improve their memory, reasoning and other skills for at least 10 minutes a day, three times a week. They

were compared to more than 2,700 people who didn't play any brain games, but spent a similar amount of

time surfing the Internet and answering general knowledge questions. All participants were given a sort of

I.Q test before and after the experiment.

     Researchers said the people who did the brain training didn't do any better on the test after six weeks than

people who had simply been on the Internet. On some sections of the test, the people who surfed the Net

scored higher than those playing the games.

     "If you're (playing these games) because they're fun, that's absolutely fine," said Adrian Owen, the study's

lead author. "But if you're expecting (these games) to improve your I.Q., our data suggests this isn't the case,"

he said during a press briefing on Tuesday.

     One maker of brain games said the company's games have been proven to boost brain power. "Their

conclusion would be like saying, 'I cannot run a mile in under 4 minutes and therefore it is impossible to do

so," Aldrich said in a statement.

     "There is precious little evidence to suggest the skills used in these games transfer to the real world," said

Art Kramer, who was not linked to the study and has no ties to any companies that make brain training games.

     Instead of playing brain games, Kramer said people would be better off getting some exercise. He said

physical activity can spark (激发) new connections between nerves and produce new brain cells."Fitness

changes the building blocks of the brain's structure," he said.

1. It can be inferred that the online brain games mentioned in the text are _______.

A. costly

B. unreliable

C. illegal

D. effective

2. Which of the following statements is true about the experiment in the second paragraph?

A. The experiment lasted for a week.

B. Age didn't affect the result of the research.

C. Every person played online brain games three times a day.

D. People who didn't play online brain games did better in I.Q test

3. What can we learn from the text?

A. Playing games which are fun can improve your I.Q.

B. There is a lot of evidence to suggest skills can transfer to the real world.

C. Do physical activity can boost your brain power.

D. Playing online games can spark new brain cells

4. The underlined sentence suggests that ______.

A. The research was not linked to the study

B. Those playing the games can score higher in the test

C. playing the games can spark new connections between nerves

D. This isn't the case that these games can improve your I.Q.