17. 주어진 문장이 들어갈 위치로 가장 적절한 것은?
It was then he remembered his experience with the glass flask, and just as quickly, he imagined that a special coating might be applied to a glass windshield to keep it from shattering. ------------- In 1903 the French chemist, Edouard Benedictus, dropped a glass flask one day on a hard floor and broke it. (①) However, to the astonishment of the chemist, the flask did not shatter, but still retained most of its original shape. (②) When he examined the flask he found that it contained a film coating inside, a residue remaining from a solution of collodion that the flask had contained. (③) He made a note of this unusual phenomenon, but thought no more of it until several weeks later when he read stories in the newspapers about people in automobile accidents who were badly hurt by flying windshield glass. (④) Not long thereafter, he succeeded in producing the world’s first sheet of safety glass.
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