洋地黄中毒引起的最严重后果是() ["神经系统损害","严重心律失常","肾功能损害","肝功能损害","难治性心力衰竭"]
在麻醉前用药中,提高痛阈最显著且有明显镇静作用的是()。 ["咪达唑仑","吗啡","苯巴比妥","东莨菪碱","格隆溴铵"]
寄生虫对人体的损伤不包括() ["夺取营养","机械性损伤","毒性作用","抗原性作用","化学作用"]
评价左室收缩功能的效率性指标是() ["每搏输出量","射血分数","左室短轴缩短率","左室周径纤维平均缩短速度","室壁收缩期增厚率"]
侵蚀性葡萄胎多发生在()。 ["流产以后","足月产以后","葡萄胎","先兆流产","过期流产以后"]
股疝的疝囊颈位于()腹股沟斜疝的疝囊颈位于()腹股沟直疝的疝囊位于()