During this same time WD Gann continued to fly his private survey plane over the USA cotton crops and retained his office staff at 78 Wall Street throughout the Great Depression.

 
  • 同一时间,江恩继续开着他的私人飞机调查全美的棉花行情,在整个经济大萧条中继续保留他在华尔街78号的办公机构。
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