优良的消化道双重对比造影钡剂，应具备的条件为() ["A．弥散性好 ","B．流动性高 ","C．浓度高","D．黏稠度高 ","E．抗凝聚性好"]
碘化钾可使症状加重的大疱性皮肤病是() ["A．寻常型天疱疮","B．落叶型天疱疮","C．疱疹样皮炎","D．大疱性类天疱疮"]
下列哪种大疱性皮肤病瘙痒剧烈() ["A．大疱性类天疱疮","B．寻常型天疱疮","C．疱疹样皮炎","D．红斑型天疱疮"]
天疱疮多发生于() ["A．中年以上患者","B．儿童","C．青年","D．新生儿"]
胸部常规摄片，采用后前位的原因包括() ["A．心脏靠近前胸壁","B．心脏靠近后胸壁","C．避免心脏影像放大失真","D．避免肺脏影像遮盖心脏","E．减少心脏影像对肺脏的遮盖"]
休克患者宜采用()胎膜早破患者宜采用()颅脑手术后的患者()
