2. 外语
  3. According to the passage, color blindness can be dangerous in certain occupations like ______. When millions of rods in our eye

According to the passage, color blindness can be dangerous in certain occupations like ______. When millions of rods in our eye

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问题 According to the passage, color blindness can be dangerous in certain occupations like ______.
When millions of rods in our eyes are at work in darkness, we can see ______.
选项
答案shapes only
解析 由题干关键词millions of rods定位原文第二段，由该段倒数第二句话中的They show us shape but not color可知，答案是shapes only。
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大学英语六级

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