2. 外语
  3. Future scientific discoveries will make possible the further prolongation of the human life_____.

Future scientific discoveries will make possible the further prolongation of the human life_____.

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问题 Future scientific discoveries will make possible the further prolongation of the human life_____.
选项 A、condition
B、well-being
C、pursuit
D、span
答案D
解析 固定搭配，life span意为“寿命”，故正确答案为D。
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