上述各项，属"虚者补之"治法具体运用的是（） ["表寒证运用辛温解表的方药","里热证采用苦寒清里的方药","气血虚弱采用补气养血的方药","瘀血证采用活血化瘀的方药","里寒证运用辛热温里的方药"]
房劳多产最容易损伤的脏器是（） ["肝","肾","脾","心","肺"]
经期延长是指月经期（）。 ["＞3天","＞4天","＞5天","＞6天","＞7天"]
肾所摄纳之气是（） ["宗气","水谷之气","营气","清气","元气"]
放置IUD后出血原因错误的是（）。 ["机械性压迫子宫内膜","血管内皮细胞损伤","释放大量前列腺素","纤溶系统活性减少","血管通透性增加"]
风机振动的原因包括哪些？
