求翻译：Payment of a preannounced fee facilitates recruiting of subjects ,establishes credibility, and perhaps provides some incentive是什么意思？

待解决

悬赏分：1 - 离问题结束还有

Payment of a preannounced fee facilitates recruiting of subjects ,establishes credibility, and perhaps provides some incentive

问题补充：

匿名	2013-05-23 12:21:38 一个预先公布的费用支付有利于受试者的招募，建立信誉，并可能提供了一些激励

匿名	2013-05-23 12:23:18 付款的一个事先声明有助于招聘的费用科目,建立信誉,也许提供了一些激励

匿名	2013-05-23 12:24:58 a的或许付款preannounced费促进吸收主题，建立可信度和提供某一刺激

匿名	2013-05-23 12:26:38 Preannounced 费用缴付便于招聘的科目、建立信誉、和或许提供了一些激励

匿名	2013-05-23 12:28:18 为参加者注意指示。

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