氮杂丝氨酸能干扰或阻断核苷酸合成是因为其化学结构类似于() ["丝氨酸","谷氨酸","天冬氨酸","谷氨酰胺","天冬酰胺"]
以下哪种情况是洋地黄适用证(). ["预激综合征合并心房颤动","风心病,心衰,快速房颤","肥厚梗阻型心肌病","高度房室传导阻滞","急性心肌梗死"]
P波与QRS波的关系在三度房室传导阻滞时具有下列特点() ["无固定关系","P-QRS按顺序发生","P-P,R-R间期相等,P波多于QRS波群","QRS波群多于P波","P-R间期>0.12s"]
能与茚三酮反应的药物是() ["巯嘌呤","氯胺酮","氨苄西林","卡马西平","利多卡因"]
主病痰饮、食滞、实热证,以及青壮年的常脉,妇人孕脉,其脉象是() ["实脉","长脉","缓脉","洪脉","滑脉"]
何谓包茎、包皮过长和包皮嵌顿,如何治疗?