(美国前国防部长唐纳德•拉姆斯菲尔德也是站着工作的.but unknown to them, a debate is percolating among ergonomics experts and public-health researchers about whet...

这是前美国国防部长拉姆斯菲尔德的一句名言,我第一次听到这句话是群总和我做 weekly one to one 的时候,原文是这样的:.1、Unknown unknowns.Reports that say that somethi...

2017年9月22日 - 作者是拉姆斯菲尔德 美国国防部长.there are things we know we know.We also know there are known unknowns; that is to say we know... 作者是拉姆...