2. 外语
  3. If the drug proves effective in human trials, it could enhance the effectiveness of existing AIDS drugs in ______. While integr

If the drug proves effective in human trials, it could enhance the effectiveness of existing AIDS drugs in ______. While integr

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问题 If the drug proves effective in human trials, it could enhance the effectiveness of existing AIDS drugs in ______.
While integrase deltas an immune cell’s genetic material and replaces it with its own, it acts like ______ in a word processor.
选项
答案a cut and paste operation
解析 根据题干中的关键词word processor定位到第六段第二句，可知HIV病毒一旦通过改变自身的遗传信息而诱导宿主细胞并进入其中，它就像文字处理软件中的剪切和粘贴程序一样，删除免疫细胞的遗传信息，并替换为自己的遗传信息。
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大学英语六级

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