研究人员对位于纽约的美国军事学院西点军校的900名陆军军官学员进行为期三年的调查研究，做出此项研究结论。
The researchers came to their conclusions after studying the development of 900 army cadet officers over a three-year period at the US Military Academy at West Point, New York.
研究人员对位于纽约的美国军事学院西点军校的900名陆军军官学员进行为期三年的调查研究，做出此项研究结论。
The researchers came to their conclusions after studying the development of 900 army cadet officers over a three-year period at the US Military Academy at West Point, New York.
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