下列关于压疮的叙述，正确的是（） A.压疮表面拭子培养可用以确定感染与侵犯的微生物的

Human relations have commanded people’s attention from early times. The ways of people have been recorded in innumerable myths, folktales, novels, poems, plays, and popular or philosophical essays. Although the full significance of a human relationship may not be directly evident, the complexity of feelings and actions that can be understood at a glance is surprisingly great. For this reason psychology holds a unique position among the sciences.

" Intuitive " knowledge may be remarkably penetrating and can significantly help us understand human behavior whereas in the physical sciences such common sense knowledge is relatively primitive. If we erased all knowledge of scientific physics from our world, not only would we not have cars and television sets, we might even find that the ordinary person was unable to cope with the fundamental mechanical problems of pulleys and levers. On the other hand, if we removed all knowledge of scientific psychology from our world, problems in interpersonal relations might easily be coped with and solved much as before. We would still " know " how to avoid doing something asked of us and how to get someone to agree with us: we would still " know " when someone was angry and when someone was pleased. One could even offer sensible explanations for the " whys " of much of the self’s behavior and feelings. In other words, the ordinary person has a great and profound understanding of the self and of other people which though unformulated or only vaguely conceived, enables one to interact with others in more or less adaptive ways. Kohler in referring to the lack of great discoveries in psychology as compared with physics, accounts for this by saying that " people were acquainted with practically all territories of mental life a long time before the founding of scientific psychology. "

Paradoxically, with all this natural, intuitive, commonsense capacity to grasp human relations, the science of human relations had been one of the last to develop. Different explanations of this paradox have been suggested. One is that science would destroy the vain and pleasing illusions people have about themselves; but we might ask why people have always loved to read pessimistic, debunking writings, from Ecclesiastes to Freud. It has also been proposed that just because we know so much about people intuitively, there has been less incentive for studying them scientifically: why should one develop a theory, carry out systematic observations, or make predictions about the obvious In any case, the field of human relations, with its vast literary documentation but meager scientific treatment, is in great contrast to the field of physics in which there are relatively few nonscientific books.

The author uses Ecclesiastes and Freud(Line 4, Para. 3)as examples in order to（）

A. find a satisfactory explanation to the human relations in their books

B. show the growing tendency to ignore scientific explanations of human relations

C. challenge the first analysis on the underdevelopment of the science of human relations

D. prove the unwillingness of people to abandon the pleasing fantasy in their mind

Some people talk about immigration in terms of politics, some in terms of history. But the core of the matter is numbers. The Labor Department says that immigrants make up about 15 percent of the work force. It’s estimated that a third of those are undocumented workers. The Pew Hispanic Center estimates that one in four farmhands in the United States is an undocumented immigrant, and that they make up a significant portion of the people who build our houses, clean our office buildings and prepare our food.

America has become a nation dependent on the presence of newcomers, both those with green cards and those without. Business leaders say agriculture, construction, meatpacking and other industries would collapse without them.

Sure, it would be great if everyone were here legally, if the immigration service weren’t such a disaster that getting a green card is a life’s work. It would be great if other nations had economies robust enough to support their citizens so leaving home wasn’t the only answer. But at a certain point public policy means dealing not only with how things ought to be but with how they are. Here’s how they are: these people work the jobs we don’t want, sometimes two and three jobs at a time. They do it on the cheap, which is tough, so that their children won’t have to, which is good. They use services like hospitals and schools, which is a drain on public coffers, and they pay taxes, which contribute to them.

Immigration is never about today, always about tomorrow, an exercise in that thing some native-born Americans seem to have lost the knack for: deferred gratification. It’s the educated man who arrived in the Washington D. C., area and took a job doing landscaping, then found work as a painter, then was hired to fix up an entire apartment complex by someone who liked his work ethic. He started his own business and wound up employing others. Does it matter that he arrived in this country with no work visa if he is now supporting the nation’s economy

If any towns, whose aging populations were on the wane before the immigrants arrived, succeed in driving newcomers away, those who remain will find themselves surrounded by empty storefronts, deserted restaurants and houses that will not sell. It’s the civic equivalent of starving to death because you don’t care for the food. But at least everyone involved can tell themselves their town wasted away while they were speaking English.

It is estimated that（） of US workforce is made up of undocumented immigrants.

A. 15 percent

B. one third

C. 4.5 percent

D. one in four

第一心音出现的时间是

A．与半月瓣开放同时发生

B．与房室瓣关闭同时发生

C．与心室快速充盈同时发生

D．在舒张早期发生

E．在心室射血高峰发生

进口以销售为目的的，列入《中华人民共和国依法管理的计量器具目录》的计量器具，在销售之前必须向（）申请检定。

A.县级以上政府计量行政部门

B.省级政府计量行政部门

C.出入境检验检疫部门

D.省级法定计量检定机构

某大型输水工程在嘉陵江上中游建设，工程主要由水利枢纽、库区、输水干渠和灌区组成。现知：该段河流有白鲟、胭脂鱼等珍稀水生生物和多处鱼类产卵场、越冬场；坝址下游有农田和县城；干渠穿过一片候鸟栖息的湿地保护区；灌区200万亩将在灌草地上建设。