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  2019-01-24 02:28:00

时间:0000-00-00

地点:New York

详情:Do you know the address? syriannaxposed.com Physicists at the U.S. National Institute of Standards and Technology (NIST) claim to have created a pair of the world???s most precise atomic timekeepers made from the element ytterbium. Acting like 21st-century pendulums or metronomes, the experimental atomic clocks have set a new record for stability, researchers said.

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  2019-01-24 02:28:00

时间:0000-00-00

地点:New York

详情:I saw your advert in the paper omega xl customer reviews WASHINGTON???The Senate on Thursday confirmed Jason Furman to a top post in the White House, elevating one of President Barack Obama’s closest advisers, as policy makers wrangle through budget discussions.

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