問題詳情

28. While he was investigating ways to improve the telescope, Newton made ______ discover which completely changed ______ man’s understanding of colour.
(A) a…不填
(B) a…the
(C) 不填…the
(D) the…a

參考答案

答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)