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A、By a series of injections given before the patient is exposed. B、By injection immediately after the patient has been stung. C、
A、By a series of injections given before the patient is exposed. B、By injection immediately after the patient has been stung. C、
admin
2015-01-26
25
问题
A team of researchers has found that immunizing patients with bee venom instead of with the bees’ crushed bodies can better prevent serious and sometimes fatal sting reactions in the more than one million Americans who are hypersensitive to bee stings. The crushed-body treatment has been ineffective. The serum made from the crushed bodies of bees produced more adverse reactions than the injections of the venom did.
The research compared results of the crushed-body treatment with results of immunotherapy that used insect venom and also with results of a placebo. After six to ten weeks of immunization, allergic reactions to stings occurred in seven of twelve patients treated with the placebo, seven of twelve treated with crushed-body extract, and one of eighteen treated with the venom.
Questions 26-30 are based on the passage you have just heard.
26. What is the main topic of the passage?
27. What can we learn about the traditional treatment for bee sting according to the researchers?
28. What was the most successful treatment described in the passage?
29. How should the treatment referred to in the passage be administered?
30. What did the results of the experiment indicate?
选项
A、By a series of injections given before the patient is exposed.
B、By injection immediately after the patient has been stung.
C、Orally for six to ten weeks before the patient is stung.
D、Orally immediately after the patient is stung.
答案
A
解析
文中提到injections of the venom,可以推断注射免疫血清应不止一次。
转载请注明原文地址:https://kaotiyun.com/show/umT3777K
本试题收录于:
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