但是一项新研究证实了一些人的猜疑：这类评分很容易被少数活跃用户所操纵。
But new research confirms what some may already suspect: those ratings can easily be swayed by a small group of highly active users.
他以前曾是一个庞氏骗局的受害人，但是在死前，他证实【确保了】他是麦道夫的最大的受益人之一。
He had been the victim of a Ponzi scheme before but, before he died, he made sure he was one of Mr Madoff's largest beneficiaries.
MoD sources显示在21起所谓的示例中已经有15起被证实了，但是他们无法确定随后进行了怎样的调查，或者美军什么时候将会做出官方说明。
MoD sources said that at least 15 of the 21 alleged cases had now been confirmed, but they were unable to say what investigations had subsequently taken place, or when they would now make a statement.
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