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In 1957 a doctor in Singapore noticed that hospitals were treating an unusual number of influenza-like cases. Influenza is somet
In 1957 a doctor in Singapore noticed that hospitals were treating an unusual number of influenza-like cases. Influenza is somet
admin
2012-06-02
36
问题
In 1957 a doctor in Singapore noticed that hospitals were treating an unusual number of influenza-like cases. Influenza is sometimes called "flu" or a "bad cold". He took samples 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. O. 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 very high speed, the virus had multiplied more than a million times within two days. Continuing their careful tests, the doctors checked the effect of drugs used against all the known sub-groups of virus type A. None of them gave any protection. This then, was something new: a new influenza virus against which the people of the world had no ready help whatsoever.
Having isolated the virus they were working with, the two doctors now dropped it into the noses of some specially selected animals, which contact influenza in the same way as human beings do. In a short time the usual signs of the disease appeared. These experiments revealed that the new virus spread easily, but that it was not a killer. Scientists, like the general public, called it simply "Asian" flu.
The first discovery of the virus, however, was made in China before the disease had appeared in other countries. Various reports showed that the influenza outbreak started in China, probably in February of 1957. By the middle of March it had spread all over China. The virus was found by Chinese doctors early in March. But China was not a member of the World Health Organization and therefore did not report outbreaks of disease to it. Not until two months later, when travelers carried the virus into Hong Kong, from where it spread to Singapore, did the news of the outbreak reach the rest of the world. By this time it was started on its way around the world.
Thereafter, WHO’s Weekly Reports described the steady spread of this virus outbreak, which within four months swept through every continent.
What can be inferred from the text?
选项
A、The influenza could not be cured by any known medicine.
B、The people who got the disease were doomed to death.
C、The "Asian" flu first broke out in Singapore.
D、China did not take the influenza seriously.
答案
A
解析
推理判断题。由第三段第三句话至第五句话可知。目前的抗流感药物对此种流感不起作用,因此[A]正确。[B]错误,此种流感并不致命(not a killer);[C]项表述与第五段段首相悖;[D]项根据中国未向世界卫生组织报告流感疫情推出“中国不认真对待此种流感”不合理,予以排除。
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0
考研英语一
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