髂窝处有包块、髋关节屈曲（）。 A.髋关节结核 B.儿童股骨头软骨病 C.类风湿性关

《中 * * 、国务院关于实行政社分开建立乡政府的通知》指出：“现行农村政社合一的体制显得很不适应。……当前的首要任务是把政社分开，建立乡政府。同时按乡建立乡党委，并根据生产的需要和群众的意愿逐步建立经济组织。”此通知出台的历史背景是[ ]

A．社会主义三大改造的基本完成

B．1958年全国掀起“大跃进”的高潮

C．当代社区基层民主的加强和扩大

D．推行家庭联产承包责任制

将下列物质用途与其对应的性质用线连起来：

（1）天然气用作家用燃料            a、还原性

（2）用碳素墨水书写档案文件        b、可燃性

（3）氢气可用于冶炼金属            c、稳定性

（4）活性炭可用于净化水            d、吸附性．

During the years after the terrorist attack on the World Trade Center, structural engineers have been trying hard to solve a question that would otherwise have been completely unthinkable: Can building be designed to stand catastrophic blasts (攻击；爆破) by terrorists?

Soon after the terrorist attacks on the twin towers, structural engineers from the University at Buffalo and the Multidisciplinary Center for Earthquake Engineering Research (MCEER) traveled to ground zero as part of a project funded by the National Science Foundation. They spent two days beginning the task of formulating (构思) ideas about how to design such structures and to search for clues on how to do so in buildings that were damaged, but still are standing.

“Our objective in visiting ground zero was to go and look at the buildings surrounding the World Trade Center, those buildings that are still standing, but that sustained damage,” said Mr. Bruneau, Ph.D. “Our immediate hope is that we can develop a better understanding as to why those buildings remain standing, while our long-term goal is to see whether earthquake engineering technologies can be married to existing technologies to achieve enhanced performance of buildings in the event of terrorist attacks,” he added.

Photographs taken by the investigators demonstrate the monumental damage to the World Trade Center towers and buildings nearby. One building a block away from the towers remains standing, but was badly damaged. “This building is many meters away from the World Trade Center and yet we see a column (柱子) there that used to be part of that building,” explained A. Whittaker, Ph.D. “The column became a missile that shot across the road, through the window and through the floor.”

The visit to the area also brought some surprises, according to the engineers. For example, the floor framing (框架) system in one of the buildings was quite strong , allowing floors that were pierced by tons of falling debris (残砾) to survive. “Good framing systems may provide a simple, but reliable strategy for blast resistance,” he added. Other strategies may include providing alternate paths for gravity loads in the event that a load-bearing column fails. “We also need a better understanding of the mechanism of collapse,” said A. Whittaker. “We need to find out what causes a building to collapse and how you can predict it.”

A. Reinhorn, Ph.D. noted that “earthquake shaking has led to the collapse of buildings in the past. Solutions developed for earthquake-resistant design may apply to blast engineering and terrorist-resistant design. Part of our mission now is to transfer these solutions and to develop new ones where none exist at present.”

小题1:The question raised in the first paragraph is one _____ .

A．that was asked by structural engineers a month ago

B．that is too difficult for structural engineers a month ago

C．that was never thought of before the terrorist attack

D．that terrorists are eager to find a solution to小题2:The column mentioned by Dr. Whittaker _____ .

A．was part of the building close to the World Trade Center

B．was part of the World Trade Center

C．was shot through the window and the floor of the World Trade Center

D．damaged many buildings near the World Trade Center小题3:A surprising discovery made by the investigators during their visit to ground zero is that _____.

A．floors in the faraway buildings remained undamaged

B．some floor framing systems demonstrate resistance to explosion

C．complex floor framing systems are more blast resistant

D．floors in one of the buildings were pierced by tons of debris小题4: What Dr. Reinhorn said in the last paragraph may imply all the following EXCEPT that _____.

A．blast engineers should develop new solutions for terror-resistant design

B．blast engineering can borrow technologies developed for terror-resistant design

C．solutions developed for earthquake-resistant design may apply to terrorist-resistant design

D．blast engineering emerges as a totally new branch of science

热射病的主要临床表现（）。

A.高热

B.热晕厥、热虚脱

C.水盐平衡失调

D.剧烈头痛和意识丧失

E.中枢神经系统症状

欠缴税款的纳税人（），对国家税收造成损失的，税务机关可以行使代位权。

A、怠于行使到期债权

B、放弃到期债权

C、无偿转让财产

D、以明显不合理的低价转让财产而受让人知道该情形