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

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

admin2012-06-26  69
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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