According to the information in Paragraph 2 which of the following statement is true of d

外语类 2019-05-10 05:03:15 公共英语已帮助人

According to the information in Paragraph 2, which of the following statement is true of drugs？

A．All drugs are of no use at all in treating the influenza symptoms

B．Most drugs can greatly relieve the influenza symptoms at any time.

C．Prescribed drugs are relatively effective only under certain conditions

D．Drugs are more useful and effective than vaccines in curing influenza.

请帮忙给出正确答案和分析，谢谢！

难度★★☆ 搜索

正确答案：C
本题是事实信息题，主要考查考生排除细枝末节的干扰确定文章中阐明的主要信息的能力。题目问：根据第二段的信息，下列哪一项关于药物的论断是正确的?这个问题涉及对流感药物的论述。原文中作者说“Nodrugscancureinfluenza，butcertainantiviralmedicinescanrelieveflusymptoms(没有药物能完全治疗流感，但是某些抗病毒药物可以减轻症状)”。而且，医生所开的药物必须在症状出现的前两天服下才能有轻微作用。可见某些药物有一定作用，而且对服用时间有要求。与这些意思符合的只有C项。