According to a new research, dreaming about something you’ve learned may actually be an indicator that your memory is working ov

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问题     According to a new research, dreaming about something you’ve learned may actually be an indicator that your memory is working overtime to retain that information. Doctors have long【B1】______the importance of a good night’s rest—for everything from improving performance to【B2】______physical well being.
   【B3】______this latest inquiry suggests that【B4】______sleep is beneficial, dreams may actually【B5】______whether our memories continue to work through【B6】______. In this latest research, researchers found that, after【B7】______ performing a task, study participants who took a nap and dreamt about that task【B8】______both those who hadn’t slept, and those who’d had a dreamless sleep or whose dreams didn’t touch【B9】______the task.
    As part of the research, subjects were asked to study a three dimensional computer maze so that later, when they were【B10】______placed somewhere in the middle of that maze, they’d be able to find their way out. Between the initial【B11】______of the maze, and the later task, some participants were allowed to nap. Among those who rested, several had dreams that【B12】______the maze—some saying that their dreams【B13】______the music that had been playing while they studied the maze earlier, while others imagined the maze as【B14】______caves that they’d had to【B15】______through. Later, when participants were put back in the maze, those who’d dreamt about it had greater【B16】______finding their way around than those who hadn’t dreamt about the【B17】______, or who hadn’t slept at all.
    The findings indicate that dreams may be a(n) 【B18】______of memory processing, and working over a problem in your sleep is a(n) 【B19】______that your brain is actively trying to【B20】______that information. The next step in the research, they say, is to examine how dreams during a full night’s sleep relate to memory process.
【B20】

选项 A、convert
B、eliminate
C、retain
D、achieve

答案C

解析 空格处所缺动词的宾语是information。大脑是“保存”信息的场所,这里选C项符合句意。
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