这不,都喜欢拿AP的微积分说事呢,我真没觉得微积分和高三数学高考题目有可比性
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ok I didn't say clear
-janeice65-
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01/30/2011 postreply
21:25:45
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I also understand
-janeice65-
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01/30/2011 postreply
21:38:28