多选题
For centuries, sailors have reported seeing the surface of the ocean glowing with a uniform milky light, a ______ scientists say may be ______ by luminescent bacteria.
【正确答案】
A、F
【答案解析】[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。