请教一题,是数据充分题:答案是C,为什么呢,此题是什么意思???
Is the line at a movie theater getting longer or shorter?
(1) People are getting on the line at the rate of 5 people per minute.
(2) The ticket booth can process 8 people every 2 minutes.
作者: sammen 时间: 2005-4-27 21:43