2. 外语
  3. For centuries, sailors have reported seeing the surface of the ocean glowing with a uniform milky light, a (i)______scientists s

For centuries, sailors have reported seeing the surface of the ocean glowing with a uniform milky light, a (i)______scientists s

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问题 For centuries, sailors have reported seeing the surface of the ocean glowing with a uniform milky light, a (i)______scientists say may be (ii)______by luminescent bacteria.
选项
答案A，F
解析 逗号说明前后同义重复。第一空与the surface of the ocean glowing with a uniform milky light(海洋表面泛着奶白色的光)同义重复。phenomenon现象，boon恩惠，quandary困惑。答案选A。validate使合法化，exacerbate使加剧，generate产生。答案选F。
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