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请教一道语法题。
1. Because the diamond is the hardest naturally substance, it is
A B
used in industry for to cut, grinding, and boring other hard materials.
C D
答案很明显C 是错了,应该是平行结构,可是B明显是adv.,怎么能够修饰 n.,难道它是修饰hardest?汗...
多谢多谢! |
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