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    精英家教网 > 高中英语 > 题目详情
    13．In a recent study，some scientists looked at the monkey's brain activity through a computer system，which changed the brain __________ into digital motor commands．（　　）
    A．signB．signalC．assignmentD．statistics

    分析 在近来的一项研究中一些科学家通过电脑系统观察了猴子的大脑活动，这一系统将脑信号转化为数字神经指令．

    解答 答案：B
    解析：A：标志；B：信号；C：任务；分配；D：数据．根据句意"这一系统将脑信号转化为数字神经指令"可知本题答案为B选项"信号"，其余选项均不符合题意．拓展：人无法直接观察到脑信号，因此只能将其转化为可见的数字或图象，再对其进行分析．

    点评 本题考查名词的词义辨析，做此类题目时一定要清楚各个选项的含义及其搭配用法，再根据句意确定最终的答案．

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