89. Alpha rhythm, a brain( wave) frequency of moderate voltage, is (characteristic) of a person (when) is awake but( relaxed). 我也认为WHEN 应改为WHO, 问题是CHARACTERISTIC在这里是什么词性?如果是名词,前面是不是应该加A或THE.如果是形容词后面又怎么可以跟of a person?
以下是引用pploo在2003-7-17 10:44:00的发言: 89. Alpha rhythm, a brain( wave) frequency of moderate voltage, is (characteristic) of a person (when) is awake but( relaxed). 我也认为WHEN 应改为WHO, 问题是CHARACTERISTIC在这里是什么词性?如果是名词,前面是不是应该加A或THE.如果是形容词后面又怎么可以跟of a person?