2. 外语
  3. The new vaccine is (i)______preventing certain forms of pneumonia and should, therefore, be more widely (ii)______in order to pr

The new vaccine is (i)______preventing certain forms of pneumonia and should, therefore, be more widely (ii)______in order to pr

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问题 The new vaccine is (i)______preventing certain forms of pneumonia and should, therefore, be more widely (ii)______in order to prevent outbreaks of the disease.
选项
答案A，E
解析 therefore说明前后同义重夏。后文说in order to prevent outbreaks of the disease(为了防止该种疾病的大规模爆发)，说明疫苗效果显著。effective in在……方面有效，unsuccessful in在……方面不成功，unverified for未证实。答案选A。第二空填入表示“使用”、“推广”的词。reconstitute使复原，administer给予病人药物，constrain抑制。答案选E.
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