during the base construction, 负反馈，有买有卖，总体上
when breakout, 正反馈,惜卖，惜买, but it cannot last too long, will revert to mean, 有买有卖, although at a different level of pricing
when breakout, 正反馈,惜卖，惜买, but it cannot last too long, will revert to mean, 有买有卖, although at a different level of pricing
选择“Disable on www.wenxuecity.com”
选择“don't run on pages on this domain”
