[名词解释] 异型性

结核球 疣状心内膜炎 关于胃炎错误的是() ["A．胃窦炎最多见","B．急性胃炎多为继发性","C．慢性胃炎多为原发性","D．分为急性和慢性两类","E．慢性胃炎与HP无关"] 稳态进动快速成像序列的稳态是指() ["A．横向和纵向磁化矢量均达到稳态","B．横向磁化矢量达到稳态","C．纵向磁化矢量达到稳态","D．图像的对比达到稳态","E．图像的信噪比达到稳态"] 柏油便中的血多来源于() ["A．胃及十二指肠","B．结肠","C．肛门直肠","D．空肠","E．回肠"] 异型性