这个是JJ里的题,大概在第5页 Mice's views of the world only have blues, greens, yellows and grays, as people who are colored blind. A. grays, as people who are colored blind. (Option A is the original sentence) B, grays, similarly to people who are colored blind. C, grays, similar to people who are colored blind. D, grays, as do people who are colored blind.