4In 2007, Barrangou et al. demonstrated for the first time the function of CRISPR/Cas9 as a defensive mechanism of bacteria against bacteriophage attacks by a technique called “plaquing” which builds upon the technique of “plating” bacteria on agar. Plaques of viruses on agar are areas without growth of bacteria due to viral attacks.
贵在精准，重在精准。我们创造的脱贫奇迹，充分证明了精准方略是减贫的制胜法宝。
，这一点在爱思助手下载最新版本中也有详细论述
Meadhainnigh knew very little about development before he joined the project, and he said it’s the first online community he has been a part of. What keeps him going is that community—and to see his and others’ work become a part of a whole.
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