亚急性甲状腺炎时,甲状腺摄取131I率和T4、FT4通常() ["甲状腺摄取131I率高于正常,T4、FT4一过性增高","甲状腺摄取131I率高于正常,T4、FT4一过性降低","甲状腺摄取131I率低于正常,T4、FT4一过性增高","甲状腺摄取131I率低于正常,T4、FT4一过性降低","甲状腺摄取131I率正常,T4、FT4也正常"]
回归系数的假设检验() ["可用r检验代替","可用t检验","可用F检验","当n<50时,可查r界值表","以上均可"]
下列说法哪项不正确() ["羊水栓塞发病突然,产妇可能尖叫一声后迅速死亡","羊水栓塞短期会出现血液不凝,出血不止","羊水栓塞患者后期会出现肾衰竭及多脏器衰竭","所有羊水栓塞患者病情都会按照急性休克期、出血期和肾衰竭期的顺序发展","羊水栓塞患者可以迅速出现循环衰竭、休克及昏迷,甚至死亡"]
桑螵蛸散中含有() ["沙苑蒺藜","芡实","莲须","龙骨","牡蛎"]
豆状核变性的临床特征为() ["肝肿大、惊厥","肝细胞损害、脑退行性病变和角膜K-F环","CT特征性改变","肝肿大、贫血和锥体外系症状","肝硬化及锥体外系症状"]
试述月经周期的调节环节--下丘脑--垂体--卵巢轴。