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1·Photo taken from top of the World Trade Center. PHOTOGRAPH BY: Mark Boster / Los Angeles Times

摄自世界贸易中心大楼顶部。

2·Boster and colleagues tested this approach against these three other well-established methods of gaining compliance to a request.

Boster和他的同事把这种方法和其他三种比较成熟的方法进行了对比，以测试哪种方法更能使对方同意你的请求。