Drugs normally effective in developed countries may not be as effective in the patients in poor countries, because they suffer f

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问题 Drugs normally effective in developed countries may not be as effective in the patients in poor countries, because they suffer from other diseases as well.

选项 A、正确
B、错误

答案A

解析 文章里说:Another example is drugs that are normally effective in suppressing HIV.In poor countries,these might not work in patients who also suffer from malaria,tuberculosis or bad nutrition.也就是说,在发达国家普遍有效的药物在贫穷国家不一定管用,因为那里的人同时患有其他疾病,故True。
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