试卷详情
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职称英语(卫生类)13
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[单项选择] Dyslexia
As many as 20% of all children in the United States suffer from some form of the learning disorder2 called dyslexia.
Experts on dyslexia say that the problem is not a disease. They say that persons with dyslexia use information in a different way . One of the worlds great thinkers and scientists. Albert Einstein was dyslexic. Einstein said that he never thought in words the way that most people do . He said that he thought in pictures instead.
The American inventor Thomas Edison was also dyslexic. Dyslexia first was recognized in Europe and the United States more than 80 years ago. Many years passed before doctors discovered that persons with the disorder were not mentally slow or disabled. The doctors found that the brains of persons with dyslexia are different.
In most people, the left side of the brain — the part that controls language is larger than the right side. In persons with dyslexia, the right side of the br
A. Right
B. Wrong
C. Not mentioned
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[单项选择]John has always remained (loyal) to his family and friends.
A. friendly
B. faithful
C. hostile
D. kind
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[单项选择]His plan should succeed for it seems quite (feasible).
A. complete
B. possible
C. daring
D. decisive
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[单项选择] The Central Dogma
Though it comes as no surprise that the composition of DNA between different organisms is different, it is not immediately obvious why the muscle cells, blood cells, and brain cells of any one particular vertebrate(脊椎动物) are so different in their structure and composition when the DNA of every one of their cells is identical. This is the key to one of the most exciting areas of modern cell biology. In different cell types, different sets of the total number of genes (genome) (基因组) are expressed. In other words, different regions of the DNA are "active" in the muscle cells, blood cells, and brain cells.
To understand how this difference in DNA activity can lead to differences in cell structure and composition, it is necessary to consider what is often known as the central dogma(法则) of molecular biology: "DNA makes RNA make protein. " In molecular terms, a gene is that portion of DNA that encodes for a single protein. The dictum" o
A. Dongma, DNA and Enzymes
B. Dogma, Proteins and Biocatalyst
C. DNA, Proteins and Biocatalyst
D. DNA, Proteins and Enzymes
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[单项选择]Resistance to Malaria
1. "Our job", said the health officer, "is to spray the walls of every house in every town and village in the malaria parts of Mexico". You may be surprised to learn that there are about ninety-nine thousand separate villages and towns. Some are big places like Mexico City, some are single houses deep in the jungles or upon the mountain-tops. The men working with our programme say that most of these localities lie within districts warm enough for the malaria-carrying mosquitoes to live in and spread the disease. That means that we must plan to spray the walls of nearly three million house once or twice a year for five years."
2. "We have studied everything very carefully" , the officer continued. "Our advance guards have drawn maps of some forty thousand parts of the country for use by the spray teams. Each house in the malaria districts has been given a special number. The United Nations has given us cars and trucks to carry the spray teams and their tools,
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[单项选择]It was very hard to (grasp) what he actually meant.
A. control
B. reach
C. catch on to
D. scope on
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[单项选择]Putting in a new window will (bring about) cutting away part of the roof.
A. contains
B. comprise
C. include
D. involve
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[单项选择]The train stopped (abruptly), making us wonder where we were.
A. all of a sudden
B. fast
C. quickly
D. slowly
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[单项选择]Through a procedure known as time-sharing, one large computer can be employed (simultaneously) by lots of small users.
A. ahead of time
B. all the time
C. at the same time
D. in time
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[单项选择]Its hard to (alter) ones habits.
A. change
B. develop
C. shorten
D. enlarge
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[单项选择]All foreign troops must (withdraw) from the country.
A. retain
B. retire
C. revise
D. retreat
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[单项选择] The Asian Flu Virus
In 1957, a doctor in Singapore noticed that hospitals were treating an unusual number of influenza-like cases. Influenza is sometimes called "flu" or as "bad cold". He took specimens from the throats of patients in his hospital and was able to find the virus of this influenza.
There are three main types of the influenza virus. The most important of these are types A and B, each of them having several sub-groups. With the instruments at the hospital the doctor recognized that the outbreak was due to a virus group A, but he did not know the sub-group. He reported the outbreak to the World Health Organization in Geneva. W. H. 0. published the important news alongside reports of a similar outbreak in Hong Kong, where about 15%-20% of the population had become ill.
As soon as the London doctors received the package of throat samples, they began the standard tests. They found that by reproducing itself at a very high speed, th
A. was a killer
B. was very weak
C. could reproduce very quickly
D. died very fast
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[单项选择]The short stories of Katherine Mansfield demonstrate her keen perceptions of human (character).
A. nature
B. status
C. comedy
D. appetite
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[单项选择]A student sticking closely to the (disciplines) of the school is often praised by the master and teachers.
A. interests
B. orders
C. regulations
D. principals
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[单项选择] Edwin Hubble
Edwin Hubble changed our ideas about the universe and how it developed. The work of few other scientists changed our understanding of 【51】 suddenly. He made his most important discoveries in the 1920s. Today, other scientists continue the work he began back then. Edwin Powell Hubble was born in 1889 in Marshfield, Missouri. He 【52】 his early years in the state of Kentucky. Then he moved with his family to Chicago, Illinois. He attended the University of Chicago, taking mathematics and astronomy 【53】 his specialty.
As a student, Hubble was also a member of the University’’s basketball team and an excellent boxer. Several people urged him 【54】 for the world heavy weight boxing championship after college. Instead he decided to continue his 【55】 .
In his first observations from Mount Wilson, California, Hubble used a telescope with one-hundred fifty-two and began 【56】 more and more distant objects. His first great discovery was
A. the nature
B. nature
C. world
D. the earth
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[单项选择] On the Train
The night train from Glasgow was so crowded that Donald, who was on his way to London to find a temporary job for the university vacation, wished that he had decided to travel by day. He had never been so hard up.
He got on the train and walked along the corridor of the second-class compartments. He couldn’’t find a seat anywhere. He could not afford to travel first class, and he did not want to stand in the corridor. Neither did he want to sit on his suitcase. He was so tired that he decided to sit down in a first class compartment at least for a while. He soon found one with a single occupant (乘客) , a gentleman reading documents from a briefcase. With the self-assurance of a first class traveler, he opened the door and went in. No sooner had he sat down than the ticket inspector arrived. What bad luck! Now he would have to pay the excess (额外的) fare. As he turned out his pocket to find enough money he saw the gentleman was watchin
A. a night train to London
B. a night train Jo Glasgow
C. a daytime train to London
D. a daytime train to Glasgow
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[单项选择]The local (authorities) will take measures to deal with noise pollution in the area.
A. control
B. learning
C. power
D. government
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[单项选择]In Tom’’s eyes, the restaurant at the corner of the street is a very (smart) one.
A. clever
B. elegant
C. loyal
D. brave
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[单项选择]He is (accustomed) to working hard.
A. anxious
B. likely
C. used
D. willing
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[单项选择]The workers finally (called off) the strike.
A. put off
B. ended
C. cancelled
D. participated in
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[单项选择]A New Method to Kill AIDS Virus
_________(46). But researchers won’’t know for a year or more whether it will work, scientist David Ho told journalists here Wednesday for the Fourth Conference in Viruses and Infections.
"This is a study that’’s in progress," said Ho, head of the Aaron Diamond AIDS Research Center, New York.
The study involves 20 people who started combinations of anti-HIV drugs very early in the course of the disease, within 90 days of their infections. They’’ve been treated for up to 18 months. Four others have dropped out because of side effects or problems complying with the exacting drug system.
The drugs have knocked the AIDS virus down to undetectable levels in the blood of all remaining patients. And, in the latest development, scientists have now tested lymph nodes (淋巴结) and semen (精液) from a few patients and found no virus reproducing there._________(47).
Ho has calculated that the drugs should be able to wipe out remaining viruses—at
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[单项选择]The trade union leaders had been urged to make a (concession) by the protesters.
A. apology
B. permission
C. substitution
D. compromise