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2025年职称英语考试《卫生类》考试共65题,分为单选题和多选题和判断题和计算题和简答题和不定项。小编每天为您准备了5道每日一练题目(附答案解析),一步一步陪你备考,每一次练习的成功,都会淋漓尽致的反映在分数上。一起加油前行。
1、Human Heart Can Make New CellsSolving a longstanding (为时甚久的) mystery, scientists have found that the human heart continues to generate new cardiac(心脏的 ) cells throughout the life span, although the rate of new cell production slows with age.The finding, published in the April 3 issue of Science, could open a new path forthe treatment of heart diseases such as heart failure and heart attack, experts say."We find that the beating cells in the heart, cardiomyocytes (心肌细胞), are renewed," said lead researcher Dr. Jonas Frisen, a professorof stem cell research at the Karolinska Institute in Stockholm, Sweden. "It has previously not been known whether we were limited to the cardiomyocytes we are born with orif they could be renewed," he said.The process of renewing these cells changes over time, Frisen added. In a 20 - year - old, about I percent of cardiomyocytes are exchanged each year, but the turnover (更替) rate decreases with age to only 0.45 percent by age 75."If we can understand how the generation of new cardiomyocytes is regulated, it may be potentially possible to develop pharmaceuticals (药物) that promote this process to stimulate regeneration after, forexample, a heart attack," Frisen said.That could lead to treatment that helps restore damaged hearts."A lot of people suffer from chronic heart failure," noted co - authorDr. Ratan Bhardwaj, also from the Karolinska Institute. "Chronic heart failure arises from heart cells dying," he said.With this finding, scientists are "opening the doorto potential therapies (疗法) to having ourselves heal ourselves." Bhardwaj said. "Maybe one could devise a pharmaceutical agent that would make heart cells make new and more cells to overcome the problem they are facing. "But barriers remain. According to Bhardwaj, scientists do not yet know how to increase heart cell production to a rate that would replace cells faster than they are dying off, especially in older patients with heart failure. In addition, the number of new cells the heart produces was estimated using healthy hearts-whether the rate of cell turnover in diseased hearts is the same remains unknown.The finding could prove to be useful to ______.【单选题】
A.the analysis of cardiac cells
B.the prevention of chronic diseases
C.the treatment of heart diseases
D.the study of longstanding mysteries
正确答案:C
答案解析:本题有一定难度,需要吃透原文句意。带着题干信息词回文章定位,答案依据在文章第二段,谈到专家称这项发现会为例如心脏衰竭、心脏病等的治疗开辟新道路,回来看选项,C项和原文句意相符,是答案。
2、There is always excitement at the Olympic Games when an athlete breaks a record.【单选题】
A.beats
B.maintains
C.matches
D.tries
正确答案:A
答案解析:运动员在奥运会上打破记录时总让人兴奋。本题有一定难度,考察的是引申意义,beat的基本意义是“击打”,引申意义有“打破记录”的意思,和break是近义词,其他选项都是常用词汇,和答案意义差异大,最佳答案是A。
3、Outside-the-classroom Learning Makes a Big DifferencePutting a bunch of college students in charge of a $300,000 Dance Marathon, fundraiser surely sounds a bit risky. When you consider the fact that the money is supposed to be given to. Children in need of medical care, you might call the idea crazy.Most student leaders don\'t want to spend a large amount of time on something they care little about, said 22-year-old University of Florida student Darren Heitner. He was the Dance Marathon\'s operations officer fortwo years.Yvonne Fangmeyer, directorof the student organization office at the University of Wisconsin, conducted a survey in February of students involved in campus organizations. She said the desire forfriendship was the most frequently cited reason forjoining.At large universities like Fangmeyer\'s, which has more than 40,000 students, the students, first of all, want to find a way to "belong in their own comer of campus".Katie Rowley, a Wisconsin senior, confirms the survey\'s findings. "I wanted to make the campus feel smaller by joining an organization where I could not only get involved on campus but also find agroupof friends. "All of this talk of friendship, however, does not mean that students aren\'t thinking about their resumes. "I think that a lot of people do join to \'fatten up their resume\'," said Heitner. "At the beginning of my college career, I joined a few of these organizations, hoping to get a start in my leadership roles. "But without passion student leaders can have a difficult time trying to weather the storms that come. Forexample, in April, several student organizations at Wisconsin teamed up foran event designed to educate students about homelessness and poverty. Student leaders had to face the problem of solving disagreements, moving the event because of rainy weather, and dealing with the university\'s complicated bureaucracy."Outside-of the classroom learning really makes a big difference," Fangmeyer said.An extracurricular activity like raising a fund of $300,000 is risky because most student leaders ____.【单选题】
A.are lazy
B.are stupid
C.are not rich enough
D.wilt not take an interest in it
正确答案:D
答案解析:答案可以从第二段的第一句话中找到。第一句话是这么说的:大多数学生干部并不想在它们不感兴趣的事上花大量的时间。
4、Mobile PhonesMobile phones should carry a label if they proved to be a dangerous source of radiation, according to Robert Bell, a scientist. and no more mobile phone transmitter towers should be build until the long-term health effects of the electromagnetic radiation they emit is scientifically evaluated, he said. "Nobody\'s going to drepdead overnight but we should be asking formore scientific information," Robert Bell said at a conference on the health effects of low-level radiation. “If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised,” he said.A report widely circulated among the public says that up to now scientists do not really know enough to guarantee there are no ill effects on humans from electromagnetic radiation. According to Robert Bell, there are 3.3 million mobile phones in Australia alone and they are increasing by 2,000 a day. By the year 2000 it is estimated that Australia will have 8 million mobile phones: nearly one forevery two people.As well, there are 2,000 transmitter towers around Australia, many in high density residential areas. ____ The electromagnetic radiation emitted from these towers may have already produced some harmful effects on the health of the residents nearby.Robert Bell suggests that until more research is completed the Government should ban construction of phone towers from within a 500 metre radius of school grounds, child care centres, hospitals, sports playing fields and residential areas with a high percentage of children. He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults. He adds that there is also evidence that if cancer sufferers are subjected to electromagnetic waves the growth rate of the disease accelerates.Then who finances the research? According to Robert Bell, it is reasonable forthe majortelephone companies to fund it. Besides, he also urges the Government to setup a wide ranging inquiry in to possible health effects.【单选题】
A.He says there is emerging evidence that children absorb low-level radiation at a rate more than three times that of adults.
B.By the year 2000 it is estimated that Australia will have 10 million mobile phones: nearly one forevery two people.
C.“If mobile phones are found to be dangerous, they should carry a warning label until proper shields can be devised,”he said.
D.Then who finances the research?
E.Forexample, Telstra, Optus and Videophone build their towers where it is geographically suitable to them and disregard the need of the community.
F.The conclusion is that mobile phones bring more harm than benefit.
正确答案:E
答案解析:第一句说的是,许多微波发射塔建在人口稠密的居民区。选项E的内容涉及微波发射塔的地点选择只考虑地理位置,而不顾及公众的需求。可见,选项E扩展了第一句表达的信息。此外,选项E中出现tower这个词,与第一句的tower相呼应,也佐证了选择的合理性。
5、Happy Marriage, Happy HeartHappily married people have lower blood pressure than unhappily married people orsingles, a Brigham Young University study says.On the other hand, even having a supportive social network did not translate into a blood pressure benefit forsingles orunhappily married people, according to the study."There seems to be some unique health benefits from marriage. It\'s not just being named that benefits health-what\'s really the most protective of health is having a happy marriage," study authorJulianne Holt Lunstad, a psychologist who specializes in relationships and health, said in a prepared statement.The study included 204 married and 99 single adults who wore portable blood - pressure monitors for24 hours. The monitors recorded blood pressure at random intervals and provided a total of about 72 readings."We wanted to capture participants\' blood pressure doing whatever they normally do in everyday life. Getting one ortwo readings in a clinic is not really representative of the fluctuations (波动) that occur throughout the day," Holt Lunstad said.Overall, happily married people scored four points ____ on the blood pressure readings than single adults. The study also found that blood pressure among married people, especially those in happy marriages dropped more during sleep than in single people."Research has shown that people whose blood pressure remains high throughout the night are at much greater risk of heart disease than people whose blood pressure drops," Holt Lunstad said.The study was published in the March 20 issue of the journal Annals (年刊) of Behavioral Medicine.The study also found that unhappily married adults have higher blood pressure than both happily married and single adults.Holt Lunstad noted that married couples can encourage healthy habits in one another, such as eating a healthy diet and having regular doctorvisits. People in happy marriages also have a source of emotional support, she said. 【单选题】
A.most
B.lower
C.higher
D.least
正确答案:B
答案解析:本题难度不大,考查词义辨析。后面出现了than,很明显,文章此处是说“婚姻幸福的成年人比未婚的成年人血压低4个读数”,答案是B。
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79为什么商务英语考试中有的考生不允许入场?:为什么商务英语考试中有的考生不允许入场?考点将拒绝考生入场,并不予改期考试或退还考费:1. 抵达考点与网上报名所选考点不一致;2. 未携带准考证或规定的有效身份证件;3. 所携身份证件的有效性未通过核验;4. 身份证件类型和号码与所持准考证显示信息不符;5. 身份证件相片与本人明显不符;6. 未按准考证规定时间到达考场;7. 不服从监考人员的管理,扰乱考场秩序。
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21需要具备怎样的基础才能备考商务英语BEC中级?:商务英语中级需要有大学英语四级到六级的水平。
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30学习商务英语BEC初级需要具备怎样的基础?:学习商务英语BEC初级需要具备怎样的基础?根据BEC考试大纲的要求,学习BEC初级需要有公共英语四级的水平。
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