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  3. A team of researchers has found that immunizing patients with bee venom instead of with the bees’ crushed bodies can better prev

A team of researchers has found that immunizing patients with bee venom instead of with the bees’ crushed bodies can better prev

admin2010-10-14  56
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 standard for fifty years, but a report released recently said that it was 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.
According to the researchers, the traditional treatment for bee stings is ______.
选项 A、widespread
B、extremely harmful
C、almost futile
D、sensitizing
答案C
解析 词汇题。第一段中说明拿碾碎的蜜蜂治疗蜜蜂蜇伤已有50年历史。但最近的一份报告说是无效的。A项，广泛的文中未提。B项，极端有害的与事实不符。D项，敏感的，文中无。
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