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BLOOD left at a crime scene could be used to estimate the age of a perpetrator, thanks to a new DNA test.

感谢全新的DNA检测技术，遗留在犯罪现场的血液可以用于判断罪犯年龄。

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Less is more. That's the test for a consumer age.

少即是多，这已为消费者时代所验证。

youdao

The new guidelines say women age twenty-one to twenty-nine only need to get a Pap test every two years instead of yearly.

VOA: special.2009.11.25

And I think you can test that by asking the question: if you could educate a child by the age of six.

你们可以通过,问这个问题来验证：,你能教育6岁的孩子吗。

麻省理工公开课 - 媒体、教育、市场课程节选

Who was Stanley Kaplan? Did he A) start a test preparation company, B) start the test preparation industry, or C) die last month at age ninety?

VOA: special.2009.09.17

The willingness of middle-class parents to put time and money into extra tuition for their children meant a fair test at age 11 was impossible to design, he said.

BBC: NEWS | UK | UK Politics | Cameron hits back over grammars

Although those groups have recommended annual mammography and clinical breast examination by a health care provider starting at age 40, other respected organizations have pointed out that mammography is a far better test for women age 50 and over.

CNN: Should I get a mammogram?

But it says all men with a life expectancy of 10 years or more should have a baseline PSA test at the age of 40.

CNN: Let men decide on prostate screening, cancer society says