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题目内容
（兰州大学大学英语（3））
8.
(4分)While he was investigating ways t improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
A. a ,/
B. a ,the
C. /, the
D. the ,a
(4分)While he was investigating ways t improve the telescope Newton made _______discovery which completely changed ____ man’s understanding of color.
A. a ,/
B. a ,the
C. /, the
D. the ,a
参考答案