题目

The noise was so _____ that only those with excellent hearing were aware of it.    A. dim    B. soft    C. faint    D. gentle 答案：C. faint    解析: faint(=weak, indistinct; not clear)“微弱的，模糊的，不清楚的”。Dim(=not bright, not clearly to be seen)不亮的，看不清的；the dim light of a candle(微弱的烛光)。

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