Diamonds that are flawed or are too small for jewelry are used to cut very hard

游客2025-03-28 22

问题 Diamonds that are flawed or are too small for jewelry are used to cut very hard metals.

选项 A、tiny
B、imperfect
C、luminous
D、crude

答案 B

解析划线词are flawed“有缺陷的”。A项tiny“微小的”；B项imperfect“有缺点的”；C项luminous“发光的，明亮的”；D项crude“天然的”。显然，B项与之语意符合。

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