2. 外语
  3. A. Significance of testing techniques for sampling microbes in the deep ice sheet B. special features of lake Vida C. later expe

A. Significance of testing techniques for sampling microbes in the deep ice sheet B. special features of lake Vida C. later expe

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问题 A. Significance of testing techniques for sampling microbes in the deep ice sheet
B. special features of lake Vida
C. later expedition on mars
D. 2004 revisit planned for collecting lake water specimen
E. Antarctic frozen life sampled and revived   
F. Accidental discovery of ice-sealed lake water Antarctica
*
选项
答案A
解析 根据段落中主题句(段落最后一句)，判断答案为A。该主题句的含义是“实验冰层深处提取生命样本的技术可能有一天会用于火星生命的探索”。
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