Expert always talks about following the trend, however, few knew where the martket would be heading to. Whether it trends up or down, one can tell only when look back, and most likely by that time, trending is ended already.
a goog question
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• 买低卖高,买低卖高。 -美西游子- ♀ (180 bytes) () 10/17/2010 postreply 10:06:08