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 选择A(被发现比海水的咸度大得多)的依据是第4段的最后一句。
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