肺动脉压是体循环压的() ["相等","1/2","1/4","1/5","1/6"]
有机磷中毒出现骨骼肌痉挛主要是由于() ["ACh释放减少","ACh释放增多","终板膜上的受体增加","胆碱酯酶活性降低","胆碱酯酶活性增强"]
男性,18岁,阵发性心悸2年。每次突然发作,持续时间1小时左右,有时呕吐可以突然终止。心电图:QRS波正常,频率为210次/分,P波不明显,诊断可能性最大的为() ["阵发性室上性心动过速","特发性室性心动过速","窦性心动过速","房性心动过速","心房扑动"]
急性病毒性肝炎早期患者的饮食应是() ["高糖","高蛋白","高脂肪","清淡易消化","尽量多食"]
急性亚硝酸盐类中毒的特效解毒药是()。 ["小剂量亚甲蓝","纳洛酮","氟马西尼","乙酰胺","二巯丙磺酸钠"]
亲表皮现象