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一篇完形填空About 2,300 years ago there lived in Greek a great thi

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一篇完形填空
About 2,300 years ago there lived in Greek a great thinker named Aristotle.He observed that feathers fell to the ground much more s_____ than stones.He concluded that heavy objects always fell faster than lighter ones and t_____ it as a truth to his students.For almost 2,000 years n_____ one questioned this theory.
T_____ about 400 years ago,Galileo,a great Italian scientist,began to question Aristotle’s theory.Over and over again he d_____ a light ball and a heavy ball at exactly the same time from the t_____ of the learning tower in Pisa.He found that they b_____ hit the ground at the same time.This _____ that heavy objects and light objects fall at the same speed i_____ air does not hold them back.This proved Aristotle’s theory to be w_____.
一篇完形填空About 2,300 years ago there lived in Greek a great thi
slowly,taught,no,Till ,dropped, top, both, shows,if, wrong
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