Вопрос № 912119 - Английский язык

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The main difference between normal and cancer is one of the growth and differentiation: most cancer cells are in their structure more like those of the young organism (fetus) than those of the adult.
They generally grow and divide more rapidly and in a disorganized fashion, but normal cells only divide and grow until they come into contact with adjacent cells and then stop their growth.
Researchers have tried to treat cancers by using drugs which inhibit the division of cells. The most rapidly dividing cancer cells will be affected by these drugs before the more slowly growing normal cells.
The major problem in cancer research now is concentrated on trying to find out the more delicate difference between cancer and normal cells.
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Researchers have tried to treat cancers by using drugs which _______.

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Cancer cells can start in any part of the body, but some sites are more favored. Unfortunately these cells rarely remain where they originate. Clusters or clumps of cancer cells break off and travel in the blood stream to other parts of the body – from the breast to the armpits, for example. This spread of cancer cells is called metastasis.
Cancer cells are definitely different from ordinary cells, and these differences can be observed in tiny sections of tissue examined under a microscope. Identifying cancer cells is an important part of the job of the pathologist.
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To identify cancer cells it is necessary to examine …

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Russian rheumatologists held their meeting in Sochi to discuss the most urgent 1_______.
Most reports were devoted to the problem of rheumatic carditis. Academician A. Nesterov, president of the Russian Scientific Society of Rheumatologists, spoke about the 2_______ form of rheumatic carditis. This form may be almost asymptomatic or present only with general arthralgia, rapid 3_______, and general weakness.
Academician A. Nesterov indicated that there was a strong relation of rheumatism to streptococcal disease and, may be, to specific reaction of certain patients to this chronic streptococcal 4_______.
A. Dolgopolova of the Moscow Institute of Rheumatological Research, Department of Pediatrics, again emphasizes the need to differentiate rheumatic latent carditis from its acute and chronic forms.

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How can we prevent typhoid?
The main symptoms of typhoid are fever, headache, malaise. The cause of typhoid is a bacillus. The incubation period is 7–21 days. The most susceptible patients are children and young adults. To treat the disease you should follow proper disposal of stools and urine and to dive chloramphenicol or substitute for 3–4 weeks. We can prevent typhoid with typhoid vaccine.

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The main symptoms of tetanus are stiffness of jaw, spasms and convulsions, difficulty in swallowing. The cause of the disease is a bacillus. The incubation period is from 5 days to 2 weeks. The disease is not communicable from person to person. The patients of all the ages are susceptible to the disease. The patient with tetanus should be hospitalized and the wound should be cleaned immediately. A doctor must use tetanus toxoid separate or in DPT to treat the patient.

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1_______. There is no condition which is so individual, so personal.
2_______. A child has had attacks of cough accompanied by breathlessness. When he recovers no one knows when the next attack will occur. 3_______. There are certain types of asthma. The allergic type is due to some biochemical substance foreign to the body which produces an attack of asthma.
Attacks of asthma may be due to different emotions so this gives one the possibility to consider asthma as psychoneurosis, determining its type as psychoneurologic.
4_______. Pneumonia, tonsillitis and other foci of infection in the body provide favourable conditions for the development of severe attacks of asthma.