It is said that ____ young people may lose the abilities to hear after five years if they listen to MP4 players which are too loud for more than five hours a week.
A．thousand ofB．six thousandsC．thousands ofD．six thousands of
C

試題分析：據(jù)說如果每周大聲的聽MP4達五個小時以上，5年之后將有數(shù)千的年輕人喪失聽力。Thousand千，thousands of 數(shù)千，要用復數(shù);但在具體的數(shù)字后面不用復數(shù)，例如six thousand六千。故選C。
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