问题标题:
【Color-blindpeopleoftenfinditdifficultto_____betweenblueandgreen.A.compareB.separateC.distinguishD.divide】
问题描述:

Color-blindpeopleoftenfinditdifficultto_____betweenblueandgreen.

A.compareB.separateC.distinguishD.divide

丁建国回答:
  C   
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