2. 外语
  3. According to the passage, color blindness can be dangerous in certain occupations like ______. According to the passage, insect

According to the passage, color blindness can be dangerous in certain occupations like ______. According to the passage, insect

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问题 According to the passage, color blindness can be dangerous in certain occupations like ______.
According to the passage, insects can see ______ which humans can’t see.
选项
答案ultra-violet rays and even X-rays
解析 题目问什么是昆虫能看见而人类却看不到的。定位原文最后一段第一句话，可得出答案。
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大学英语六级

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