These optimal error rates were documented in independent testing at Sandia National Laboratories.

这些理想的错误率是在Sandia国家测试实验室记录的。

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But independent testing specialists briefed on the matter said the breach represents one of the most serious security lapses that's come to light in the history of collegeadmissions testing.

但有考试专家称，此次泄题代表了有史以来美国高校入学考试最严重的保密事故之一。

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But independent testing specialists briefed on the matter said the breach represents one of the most serious security lapses that's come to light in the history of collegeadmissions testing.

但有考试专家称，此次泄题代表了有史以来美国高校入学考试最严重的保密事故之一。

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