ABO抗原遗传的"三复等位基因"学说认为,ABO血型基因型有() ["3种","4种","5种","6种","7种"]
已婚女性,32岁,停经3个月,阴道大流血,伴剧烈腹痛,夜间来诊。询问病史获知患者已妊娠3个月,之前无阴道流血,性生活后出现此症状,来时刚排空小便,下一步应作的检查是() ["A.妇科检查","盆腔CT检查","尿妊娠试验","阴道B超","抽血查血常规,凝血四项"]
糖尿病患者注射正规胰岛素的时间是() ["餐前5min","餐前15min","餐前30min","餐前1h","餐后15min"]
男性,3岁。出生6月时发现前胸稍内陷,以后逐渐加重。现易患感冒,稍活动后气急。查体:双肺听诊呼吸音粗糙。最可能的诊断是() ["A.胸骨软化症","鸡胸","肋骨分叉畸形","漏斗胸","前纵隔肿瘤"]
DSA成像系统中不包括() ["X线机","网络服务器","图像采集卡","图像检测器","快速图像处理机"]
简述影响腰麻阻滞平面调节的主要因素。