麻疹后肺炎是由麻疹病毒所致的间质性肺炎。

题型:判断题

问题:

麻疹后肺炎是由麻疹病毒所致的间质性肺炎。

考点:普通考研10医学中西医结合基础硕士
题型:判断题

做硫在氧气中燃烧的实验时,在集气瓶内放了少量水来吸收SO2,实验结束后,集气瓶内仍残留一定量的SO2。围绕如何处理这些SO2的问题,同学们进行了相关探究。

【提出问题】SO2是形成酸雨的主要物质。由此想到,选用氢氧化钠等碱性溶液吸收SO2,效果会怎样?

【设计与实验】 用两套完全相同的装置做对比实验(SO2不溶于植物油也不与其反应),如下图所示: 

(1)为确保实验的准确性,要先检查装置的_______①______;

(2)实验开始叫,先用弹簧夹夹紧乳胶管,再将注射器内等体积的水和NaOH溶液分别注入充满SO2的集气瓶;

(3)充分吸收SO2后,打开弹簧夹,观察实验后进入两个集气瓶内植物油的体积。

【结论与解释】(1)甲实验中,SO2溶于水且与水反应生成H2SO3,反应的化学方程式为___________②_______,可用______③_____来测定该溶液的酸碱度;

(2)乙实验中,SO2与NaOH发生反应最终生成NaHSO3;

(3)分析实验现象得知,用碱性溶液比用水吸收SO2的效果_________④________。

【拓展与迁移】(1)工业上常用氨水吸收SO2,得到的(NH4)2SO3可用作化肥,但在实验室里吸收SO2,一般选用NaOH溶液而不选用氨水,主要是考虑______⑤______性;

(2)在必须用煤作燃料的情况下.要减少SO2的排放,请你提出一条合理化建议:_____⑥_________。

题型:判断题

导致建筑物裂缝的其他原因有什么()。

A、混凝土养护不当,使混凝土水分消失过快而引起干缩

B、建筑物的运用没有按规定执行,在超设计荷裁下使用

C、由于地震、爆破、冰凌、台风和超标准洪水等引起建筑物的扳办作用而发生裂绝

D、断面过了单薄、孔洞面积所占比例过大

题型:判断题

“Life is speeding up. Everyone is getting unwell.”

This may sound like something someone would say today. But in fact, an unknown citizen who lived in Rome in AD 52 wrote it.

We all love new inventions. They are exciting, amazing and can even change our lives.

But have all these developments really improved the quality of our lives?

Picture this: You’re rushing to finish your homework on the computer. Your mobile phone rings, a QQ message from your friend appears on the screen, the noise from the television is getting louder and louder. Suddenly the computer goes blank and you lose all your work. Now you have to stay up all night to get it done. How calm and happy do you feel?

Inventions have speeded up our lives so much that they often leave us feeling stressed and tired. Why do you think people who live far away from noisy cities, who have not telephones, no cars, not even any electricity often seem to be happier? Perhaps because they lead simpler lives.

One family in the UK went “back in time” to see what life was like without all the inventions we have today. The grandparents, with their daughter, and grandsons Benjamin, 10, and Tomas, 7, spent nine weeks in a 1940s house. They had no washing machine, microwave, computer or mobile phones.

The grandmother, Lyn, said, “It was hard physically, but not mentally.” She believed life was less materialistic. “The more things you have, the more difficult life becomes,” She said. The boys said they fought less to fight over, such as their computer. Benjamin also noticed that his grandmother had changed from being a “trendy(时髦的), beer-drinking granny, to one who cooked things.”

Here are some simple ways to beat the stress often caused by our inventions!

Don’t be available all the time, turn off your mobile phone at certain times of the day. Don’t check your e-mail every day.

Don’t reply to somebody as soon as they leave a text message just because you can. It may be fun at first, but it soon gets annoying.

小题1:The passage is mainly about         .

A.problem with technology

B.improvements of our life with technology

C.the important roles technology plays in our everyday life

D.major changes which will be likely to happen to technology小题2:The writer quoted(引用) what a citizen in ancient Rome said at the beginning of the story in order to         .

A.share a truth about life

B.tell us what life was like long time ago

C.make us wonder what causes such a thing to happen

D.point out that you experience some big problems and they may be the same小题3:Why did the family choose to spend some time in a 1940’s house? Because       .

A.they liked to live simple lives

B.they were curious about how people lived without modern inventions

C.they were troubled by modern inventions

D.living in a different time would be a lot of fun for them小题4:What do you think the underlined word “available” in the 1st suggestion offered by the writer mean?

A.Busy on line

B.Free.

C.Be able to

D.Be found by others.

题型:判断题

关于肾病综合征激素的副作用说法不正确的是()

A.长期应用易发生感染

B.类固醇性糖尿病

C.骨质疏松

D.高血压

E.呼吸衰竭

题型:判断题

在城镇土地使用税的征税范围中,城市的土地包括市区和郊区的土地;县城的土地是指县人民政府所在地的城镇的土地;建制镇的土地是指镇人民政府所在地的土地。( )

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