2. 外语
  3. In order to live longer, we should postpone the process of aging. Scientists have known the reason that people grow old.

In order to live longer, we should postpone the process of aging. Scientists have known the reason that people grow old.

admin2009-06-15  64
问题 In order to live longer, we should postpone the process of aging.
Scientists have known the reason that people grow old.
选项 A、Right
B、Wrong
C、Not mentioned
答案B
解析 见第二段倒数第二句：研究衰老的科学家想知道：为何人类会变老?
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