Results Among the 45270 voluntary blood donors, the total positive test rate were 3.11%, which was related to age, level of education and occupation of blood donors.

结果①45270名献血者血液检测阳检率（3.11%）随着年龄增长、文化程度的降低而增加，与献血者的职业相关；

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Can I run a test at a set rate?

我是否能够以一定的比率运行测试？

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The spat in Seattle comes as districts nationwide wrestle with how best to use student test scores to rate teachers.

WSJ: Seattle Teachers Protest Exams

Scott Fitzgerald got off his famous observation about the test of a first-rate mind.

FORBES: Magazine Article

At the same time, Obama said, schools should be judged on criteria other than student test performance, including attendance rate.

FORBES: President Obama Says Standardized Tests Make Education Boring, Don’t Adequately Measure Performance