题目内容
We love to have our grandchildren visit, but they always leave such a ________for us to clean up afterwards.
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Einstein’s job as a professor of physics enables him to publish five important papers in 1905.
In his theory of quantum mechanics, Einstein proposed that space and time were threads in a common fabric.
Einstein came from the same place where Newton grew up.
According to Peter Galison, if Einstein hadn’t been born, his 1905 papers would eventually have been written in some form of others.
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