某群桩基础的平面,剖面和地基土层分布情况如题图;地质情况如下:①杂填土:其重度γ=1

题型:单项选择题

问题:

某群桩基础的平面,剖面和地基土层分布情况如题图;地质情况如下:

①杂填土:其重度γ=17.8kN/m3

②淤泥质土:其重度γ=17.8kN/m3,桩的极限侧阻力标准值qsik=20kPa,属高灵敏度软土:

③黏土:其重度γ=19.5kN/m3,桩的极限侧阻力标准值qsik=60kPa,土的压缩模量Es1=8.0MPa:

④淤泥质土:地基承载力标准值fk=70kPa,压缩模量Es2=1.6MPa:在桩长深度范围内各土层的加权平均土层极限摩擦力标准值qsk=21kPa;

⑤作用于桩基承台顶面的竖向力设计值F=3600kN,桩基承台和承台上土自重设计值G=480kN。本桩基安全等级为二级。

如果桩基直径为0.4m,则基桩极限侧阻力标准值与下列()项值接近。

A.435.9kN

B.450.9kN

C.467.23kN

D.475.94kN

考点:二级注册结构工程师二级结构师专业知识一、二级注册结构工程师专业部分
题型:单项选择题

患者,女,32岁,重度主动脉狭窄,拟行心内直视手术。术前1天突感左心前区疼痛,伴冷汗、恶心。

最可能的情况是()。

A.狭窄部痉挛,心排血量减少

B.冠脉病变严重导致心肌梗死

C.伴有冠心病而发生心绞痛

D.伴有渗出性心包炎摩擦所致

E.心肌耗氧增加,使心内膜下血流灌注减少

题型:单项选择题

阅读理解。

     Scientific discoveries have changed man's life a great deal during the past century. First of all, they have

greatly improved material well-being in several areas of life. In the field of medicine, cures for life threatening

diseases have enabled people to live longer. In communication, the telephone and e-mail have made it possible

for us to communicate with anyone in the world without leaving our homes or offices. Advances in

transportation allow businessmen to fly across the ocean in the morning and return home the same evening.

Space technology has put men on the moon. More efficient ways of using available resources, such as coal

and solar power, have been explored.

     Scientific discoveries have also changed man's moral atmosphere. Ethical (伦理的) issues are raised by

these discoveries. Should we keep a terminally ill person alive through drugs and machines or should we allow

him to die in dignity? With advances in transportation had come the problem of pollution for nearly every major

city in the world. If cities become uninhabitable, then such technical advances may come with too great a price

to pay. Many people also question the wisdom of sending men to the moon when there are urgent problems

that have not been solved on earth. During future years, increasing attention must be given to the moral as well

as the practical applications of science.

1. Scientific discoveries have improved man's life in several fields. Which of the following is not mentioned in

    the passage? [ ]

A. medicine

B. communication and transportation

C. education

D. space technology

2. Which of the following statements is true according to the passage? [ ]

A. Scientific discoveries have only changed man's moral atmosphere.

B. Scientific discoveries have only changed man's material well-being.

C. Scientific discoveries have helped people find efficient ways of using available resources.

D. Men are sent to the moon because there are urgent problems that have not been solved on earth.

3. At the end of the passage the author says that increasing attention must be given to _____. [ ]

A. the moral applications of science

B. the practical applications of science

C. urgent problems on the earth

D. both A and B

4. The best title for the passage is _____. [ ]

A. Science discoveries

B. Science and daily life

C. Advances in transportation

D. City pollution

题型:单项选择题

子宫体癌的病理学改变及诊断,不正确的是

A.又称子宫内膜瘤,发生在子宫内膜
B.子宫内膜为弥漫性增厚或团块状
C.始发于更年期与绝经期的妇女
D.声像图能显示内膜增厚,故早期即能确诊
E.主要临床表现为 * * 出血

题型:单项选择题

装载出境动物的运输工具,进行消毒处理合格后,由口岸检验检疫机构签发(),准予装运。

A.《出从境集装箱报检单》

B.《运输工具检疫处理证书》

C.《集装箱检验检疫结果单》

D.以上都不对

题型:单项选择题

氢气发生器内使用20%的()溶液做电解液。

A、HCL

B、CaCO3

C、KOH

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