典型嗜铬细胞瘤在() ["A.T1<\/sub>WI呈低信号,T2<\/sub>WI呈中等高信号
","B.T1<\/sub>WI呈高信号,T2<\/sub>WI呈低信号
","C.T1<\/sub>WI呈低信号,T2<\/sub>WI呈中等信号
","D.T1<\/sub>WI及T2<\/sub>WI均呈高信号
E.T1<\/sub>WI及T2<\/sub>WI均呈低信号"]
因输血而感染的疾病不包括() ["疟疾","病毒性肝炎","艾滋病","梅毒","流行性出血热"]
保险
证券登记结算机构
关于正常菌群说法错误的是() ["相对稳定","螺旋体不属于正常菌群","有生物拮抗作用","可促进免疫器官发育","可引起内源性感染"]
比强度