同时还发现，同一倍性的种与种之间，种内各株系之间，DNA的含量有一定的差异。
The result also showed there was some difference in DNA content to the same ploidy between different species and different strains of the intraspecies.
如果你生活中的总压力超过150，你生病的可能性会增加一倍。
If the total stress in your life is over 150, you are twice as likely to get ill.
如果这份调查有代表性，那就意味着即便是在危机开始之前，真实的失业率也高出官方数据一倍以上。
If its survey is representative, that would imply the real unemployment rate is more than twice the official figure even before the crisis.
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