While he was investigating ways to improve the telescope, Newton made ____ discovery which completely changed ________ man’s understanding of color.
A.a ; / | B.a ; the | C./ ; the | D.the ; a |
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While he was investigating ways to improve the telescope, Newton made ____ discovery which completely changed ________ man’s understanding of color.
A.a ; / | B.a ; the | C./ ; the | D.the ; a |