送交者: whatistruth 于 2013-06-18, 22:49:22:

回答: 年数太长，不可设计的control实研。实研员会死掉实研还没完 由 cornbug 于 2013-06-18, 22:45:22:

• need preliminary data for an experimental design. - cornbug (290 bytes) 2013-06-18, 23:05:56 (720496)
  • there're people did eat and not eat. (无内容) - whatistruth (0 bytes) 2013-06-18, 23:12:53 (720498)
    • That is why there is a need of large population - cornbug (114 bytes) 2013-06-18, 23:17:12 (720499)
      • 你的假设是中毒人口已经占绝大多数了？那这个不是现在讨论 - whatistruth (92 bytes) 2013-06-18, 23:46:04 (720502)

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