病历摘要:患者男性,36岁,劳累后心悸、气促2年,常伴有胸闷痛,出现过晕厥。体查:血

题型:多项选择题 案例分析题

问题:

病历摘要:患者男性,36岁,劳累后心悸、气促2年,常伴有胸闷痛,出现过晕厥。体查:血压140/60mmHg,心界向左下扩大,胸骨右缘可触及收缩期震颤,闻及3/6级喷射性收缩期杂音,主动脉瓣第二听诊区可闻及3/6级舒张期哈气样杂音,心尖部可闻及3/6级隆隆样舒张期杂音。

主动脉瓣关闭不全的周围血管征,包括以下哪些()。

A.颈动脉搏动明显

B.Durozhiez征

C.奇脉

D.毛细血管搏动;枪击音;水冲脉

E.Ewart征

F.Kussmaul征

考点:心血管内科(医学高级)医学高级心血管内科特训密卷(副高)八
题型:多项选择题 案例分析题

场景(十五) 某高层住宅工程结构设计合理使用年限50年,屋面防水为一级,设计使用年限15年,工程于2007年8月5日竣工验收合格并交付使用。
根据场景(十五),回答下列问题:

该工程施工单位出具的质量保修书中有下列内容,其中符合法律、法规要求的是( )。

A.基础工程的保修期限为50年

B.屋面防水工程的保修期限为7年

C.有防水要求的卫生间、厨房的保修期限为2年

D.电气管线、给水排水管道、装修工程的保修期限为1年

E.供热系统的保修期限自2007年采暖期起,到2009年采暖期结束为止

题型:多项选择题 案例分析题

2011年3月11日下午,日本东北部地区发生里氏9级特大地震和海啸灾害,造成重大人员伤亡和财产损失。强震发生后,中国军队将筹措到位的第一批次援日救灾物资打包成件,其中棉帐篷和毛巾被共320件,毛巾被比棉帐篷多80件。

(1)求打包成件的棉帐篷和毛巾被各多少件?

(2)现计划租用甲、乙两种飞机共8架,一次性将这批棉帐篷和毛巾被全部运往日本重灾区宫城县,已知甲种飞机最多可装毛巾被40件和棉帐篷10件,乙种货车最多可装毛巾被和棉帐篷各20件,则安排甲、乙两种飞机时有几种方案?请你帮助设计出来;

(3)在第(2)问的条件下,如果甲种飞机每架需付运输费4000元,乙种飞机每架需付运输费3600元,应选择哪种方案可使运输费最少?最少运输费是多少元?

题型:多项选择题 案例分析题

     I don't ever want to talk about being a woman scientist again. There was a time in my life when people asked constantly for stories about what it's like to work in a field dominated by men. I was never very

good at telling those stories because truthfully I never found them interesting. What I do find interesting

is the origin of the universe, the shape of space-time and the nature of black holes.

     At 19, when I began studying astrophysics (天体物理学), it did not bother me in the least to be the

only woman in the classroom. But while earning my Ph.D. at MIT and then as 3 post-doctor doing space

research, the issue started to bother me. My every achievement-jobs, research papers, awards-was

viewed through the lens of gender (性别) politics. So were my failures. Sometimes, when I was pushed

into an argument on left brain versus (相对于) right brain, or nature versus nurture (培育), I would

instantly fight fiercely on my behalf and all womankind.

     Then one day a few years ago, out of my mouth came a sentence that would finally become my reply

to any and all provocations: I don't talk about that anymore. It took me 10 years to get back the

confidence I had at 19 and to realize that I didn't want to deal with gender issues. Why should curing

sexism be yet another terrible burden on every female scientist? After all, I don't study sociology or

political theory.

     Today I research and teach at Barnard, a women's college in New York City. Recently, someone

asked me how many of the 45 students in my class were women. You cannot imagine my satisfaction

at being able to answer: 45. I know some of my students worry how they will manage their scientific

research and a desire for children. And I don't dismiss those concerns. Still, I don't tell them "war"

stories. Instead, I have given them this: the visual of their physics professor heavily pregnant (怀孕)

doing physics experiments. And in turn they have given me the image of 45 women driven by a love of

science. And that's a sight worth talking about.

1. From Paragraph 2, we can infer that people would attribute the author's failures to ______.

A. the very fact that she is a woman

B. her involvement in gender politics

C. her over-confidence as a female astrophysicist

D. the burden she bears in a male-dominated society

2. What did the author constantly fight against while doing her Ph.D. and post-doctoral research?

A. Lack of confidence in succeeding in space science.

B. Unfair accusations from both inside and outside her circle.

C. People's stereotyped(模式化的)attitude towards female scientists.

D. Widespread misconceptions about nature and nurture.

3. Why does the author feel great satisfaction when talking about her class?

A. Female students no longer have to worry about gender issues.

B. Her students' performance has brought back her confidence.

C. Her female students can do just as well as male students.

D. More female students are pursuing science than before.

4. What does the image the author presents to her students suggest?

A. Women students needn't have the concerns of her generation.

B. Women have more barriers on their way to academic success.

C. Women can balance a career in science and having a family.

D. Women now have fewer problems about science career.

题型:多项选择题 案例分析题

设总体X的概率密度为


其中θ是未知参数.
(Ⅰ) 求θ的矩估计量,判断它是否为θ的无偏估计量;
(Ⅱ) 求θ的最大似然估计量,判断它是否为θ的无偏估计量.

题型:多项选择题 案例分析题

一般成人与儿童的输液速度分别是多少?

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