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单选题

It is irritating to be forced to listen to such silly conversation.

A. chilly

B. annoying

C. accessory

D. furtive

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单选题It is irritating to be forced to listen to such silly conversation.
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单选题共用题干第二篇<br><br>Bone Marrow Transplantation<br><br>Bone marrow is the spongy tissue inside some of your bones,such as your hip and thigh bones. It contains immature cells,called stem cells.The stem cells can develop into the red blood cells that carry oxygen through your body,the white blood cells that fight infections,and the platelets that help with blood clotting.<br>If there is a problem with your bone marrow,a transplant can give you healthy new marrow. You could need a transplant because of a disease,such as bone marrow diseases or cancers like leukemia kemia or lymphoma.Or you might need one if a strong cancer treatment kills your healthy blood cells.<br>People with cancer sometimes donate bone marrow before treatment to be transplanted later. But often the new marrow comes from a donor,either a close family member or someone unrelated.<br>The healthy cells for a transplant can come from three sources:bone marrow;peripheral (circulating) blood that has an increased number of healthy blood-forming cells(also called peripheral blood stem cells or PBSC);umbilical cord blood that is collected after a baby is born.<br>If you need an allogeneic transplant,your doctor will look for a marrow donor or cord blood unit that matches your HLA tissue type.HLA stands for human leukocyte antigen,a markei your immune system uses to recognize which cells belong in your body and which do not.<br>Before your body can receive the healthy cells,the diseased cells must be destroyed.This is done using chemotherapy and sometimes radiation. The destruction of diseased cells is called a preparative regimen or a conditioning regimen.<br>On the day of transplant,the cells from the marrow donor or cord blood unit are infused intravenously(go into your body through a large vein).These healthy cells move into the spaces inside your bones where they create new marrow. They grow and make healthy new red blood cells,white blood cells,and platelets.
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单选题He often mocks my French accent.
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A dentist may decide to extract the tooth to prevent recurrent trouble.I was so annoyed with him for turning up late.The industrial revolution modifed the whole structure of English society.A seed planted in the sensitive lining of an oyster begins a perpetual coating process that forms a pearl.共用题干 Many teachers believe that the responsibilities for learning lie with the student._________(51) a long reading assignment is given,instructors expect students to be familiar with the_________(52) in the reading even if they do not discuss it in class or take an examination.The__________(53) student is considered to be one who is motivated（激励）to learn for the sake of_________(54),not the one interested only in getting high grades.Sometimes homework is returned________(55)brief written comments but without a grade.Even if a grade is not given,the student is_________(56) for learning the material assigned.When research is________(57),the professor expects the student to take it actively and to complete it with minimum guidance.It is the_________(58)responsibility to find books, magazines,and articles in the library.Professors do not have the time to explain _________(59)a university library works;they expect students,______(60)graduate students,to be able to exhaust the reference sources in the library.Professors will help students who need it,but_________(61)that their students should not be too dependent on them. In the United States professors have many other duties________(62)teaching,such as administrative or research work.________(63),the time that a professor can spend with student outside of class is_________(64).If a student has problems with classroom work,the student should either approach a professor during office hour_________(65)make an appointment.共用题干第一篇<br><br>Florence Nightingale<br><br>Florence Nightingale was born in Florence,Italy,while her wealthy English parents <br>were traveling in Europe.As a child,she traveled to many places with her family and <br>learned how to speak several languages.<br>When Nightingale was 17,she told her family that she was going to help sick people. <br>Her parents did not approve,but Nightingale was determined.<br>She traveled to hospitals all over Europe.She saw that doctors were working too hard. <br>She saw that patients died because they did not get enough care.Nightingale felt that <br>women could be doing more to help doctors take care of sick people.<br>Nightingale knew that in order for nurses to do more,they needed special training in <br>how to take care of sick people.Nightingale went to a hospital in Germany to study nursing. <br>Then she returned to London and became the head of a group of women called <br>Gentlewomen During Illness.These women cared for sick people in their homes.<br>In 1854,England was fighting a war with Russia.War reporters wrote about the <br>terrible conditions in the hospitals that cared for the wounded.People demanded that <br>something be done about it.A leader of the government asked Florence Nightingale to take <br>some nurses into the war hospitals.So,in November 1854,Nightingale finally got to work <br>in a hospital.<br>She took along 38 nurses whom she had trained herself.<br>At first,the doctors on the battlefields did not want Nightingale and her nurses in their <br>hospitals.They did not believe that women could help.But in fact,the nurses did make a <br>difference.They worked around the clock,tending the sick.Thanks to their hard work, <br>many wounded soldiers survived.<br>After the war,Nightingale and her nurses were treated like heroes.Finally,in 1860, <br>she started the Nightingale School for Nurses.In time,thanks to Florence Nightingale, <br>nursing became an important part of medicine.共用题干第三篇<br><br>Scientific Attitude<br><br>We all know that science plays an important role in our society.However,many people believe that our progress depends on two different aspects of science.The first aspect is the application of the machines,products and systems of knowledge that scientists and technologists develop.The second is the application of the special methods of thought and action that scientists use in their work.<br>What are these special methods of thinking and acting? First of all,it seems that a successful scientist is curious一he wants to find out how and why the universe works.He usually pays attention to problems which he notices have no satisfying explanation,and looks for relationships even if the data available seem to be unconnected.Moreover,he thinks he can improve the existing conditions and enjoys trying to solve the problems which this involves.<br>He is a good observer, accurate, patient and objective（客观的）and uses the facts he observes to the fullest. For example,trained observers obtain a very large amount of information about a star mainly from the accurate analysis of the simple lines that appear in a spectrum（光谱）.<br>He does not accept statements which are not based on the most complete evidence available.He rejects authority as the only basis for truth.Scientists always check statements and make experiments carefully and objectively.<br>Furthermore,he does not readily accept his own idea,since he knows that man is the least reliable of scientific instmments and that a number of factors tend to disturb objective investigation.<br>Lastly,he 15 full of imagination since he often has to look for relationships in data which are not only complex but also frequently incomplete.Furthermore,he needs imagination if he wants to guess how processes work and how events take place.<br>These seem to be some of the ways in which a successful scientist or technologist thinks and acts.共用题干第二篇<br><br>Bone Marrow Transplantation<br><br>Bone marrow is the spongy tissue inside some of your bones,such as your hip and thigh bones. It contains immature cells,called stem cells.The stem cells can develop into the red blood cells that carry oxygen through your body,the white blood cells that fight infections,and the platelets that help with blood clotting.<br>If there is a problem with your bone marrow,a transplant can give you healthy new marrow. You could need a transplant because of a disease,such as bone marrow diseases or cancers like leukemia kemia or lymphoma.Or you might need one if a strong cancer treatment kills your healthy blood cells.<br>People with cancer sometimes donate bone marrow before treatment to be transplanted later. But often the new marrow comes from a donor,either a close family member or someone unrelated.<br>The healthy cells for a transplant can come from three sources:bone marrow;peripheral (circulating) blood that has an increased number of healthy blood-forming cells(also called peripheral blood stem cells or PBSC);umbilical cord blood that is collected after a baby is born.<br>If you need an allogeneic transplant,your doctor will look for a marrow donor or cord blood unit that matches your HLA tissue type.HLA stands for human leukocyte antigen,a markei your immune system uses to recognize which cells belong in your body and which do not.<br>Before your body can receive the healthy cells,the diseased cells must be destroyed.This is done using chemotherapy and sometimes radiation. The destruction of diseased cells is called a preparative regimen or a conditioning regimen.<br>On the day of transplant,the cells from the marrow donor or cord blood unit are infused intravenously(go into your body through a large vein).These healthy cells move into the spaces inside your bones where they create new marrow. They grow and make healthy new red blood cells,white blood cells,and platelets.What rate will I get if I convert my dollars into Euros?He often mocks my French accent.