词汇精练——quantify

关键字词汇精练;quantify

2015-10-14 来源：新通外语网igo99.cn 作者：新通教育阅读量：手机阅读

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Precise measurements can be made of the length and frequency of the infant's attention between two stimuli. Heart and respiration monitors provide the investigator with the number of heartbeats or breaths taken when a new stimulus is presented. Numerical increases are used as quantifiable indicators of heightened interest in the new stimulus. Increases in nonnutritive sucking were first used as an assessment measure by researchers in 1969. They devised an apparatus that connected a baby's pacifier to a counting device. As stimuli were presented, changes in the infant's sucking behavior were recorded. Increases in the number of sucks were used as an indicator of the infant's attention to or preference for a given visual display.
The word quantifiable in the passage is closest in meaning to
○visual
○permanent
○meaningful
○measurable

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