Reading passages


- The text gives a detailed account of -------



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Reading passages

 
317- The text gives a detailed account of ------- .
A) how to determine who are vulnerable in an outbreak of diphtheria 
B) the special advantages of active prophylactic immunisation 
C) an immunisation scheme specially designed to deal with an outbreak of diphtheria in a 
school 
D) the stages through which diphtheria turns out an epidemic 
E) the various symptoms of diphtheria and the treatment called for at different stages of 
the disease 


 
 
204 
318- The writer maintains that, in an outbreak of diphtheria in a school, it is wise to 
keep carriers away from the other children ------- .
A) even if there are very few of them 
B) since this will make the treatment more effective 
C) even it this means closing the school 
D) otherwise they will all become re-infected 
E) especially in the period just before active immunity takes place 
Worms are known as intestinal parasites, but the only common types found in France 
are thread worms, the tiny thread-like worms which cause irritability and itching in 
the skin of children, less often in adults. Then there are round-worms, somewhat 
resembling the ordinary garden earthworm, which seldom lead to symptoms. Finally, 
the third group is the tapeworms which my reach a length of 6 m. Many parasitic 
worms lead a double life, they spend part of their life in the human intestine and the 
other part in the muscles of another animal. The tapeworm, for example, while in the 
human intestine, lays eggs which pass out of the body in the excrete, and are then 
swallowed by various animals, especially in those parts of the world where human 
excrete are used as fertilisers in the fields.
 

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