2. 外语
  3. What is the modem conundrum the author has in mind? According to paragraph 4, what were the subjects required to do during the

What is the modem conundrum the author has in mind? According to paragraph 4, what were the subjects required to do during the

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问题 What is the modem conundrum the author has in mind?
According to paragraph 4, what were the subjects required to do during the experiment?
选项 A、To control the sensors and many other factors.
B、To rate the degrees to which they could be interrupted.
C、To read and analyze all the indicators.
D、To decide which indicators were important statistics.
答案B
解析 利用题干中的subjects(研究对象)作为答案线索，这样发现答案相关句：(第4段) The sensors monitored these and many other factors while four subjects Were at work．At random intervals, the not-interruptible”．(该划线句内容与B一致：对是否能被打断工作作出评定)。
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