小儿坐位时颈静脉饱满可见于以下情况,哪项除外() ["右心衰竭","左心衰竭","心包积液","缩窄性心包炎","哭闹"]
颈椎张口位摄影,错误的是() ["上颌切牙咬合面与乳突尖连线垂直于床面","头后仰","中心线向头侧倾斜15°","尽量张大口","主要观察寰枢椎"]
麻醉过程中低温对机体的影响下述错误的是() ["容易出现代谢性酸中毒","全身氧耗减少","麻醉药物的作用延长","血液的黏性增加","易发生血管内凝血"]
制取印模后必须尽快灌注模型的印模材料是() ["A.硅橡胶","B.藻酸盐","C.聚醚橡胶","D.B和C"]
葛根芩连汤中喘而汗出的机理是() ["大肠热盛,上蒸于肺,外蒸于体表","兼太阳病不解,肺气不宣","邪热内传阳明,大肠传导失职","表邪内陷,肺热壅盛","太阳病误下,邪陷胸中,正气尚能抗邪外出"]
属于支链氨基酸的是()。属于条件必需氨基酸的是()。