第18题: [单项选择]患儿,女,6个月。腹泻4天,每日10余次,稀水样,少许黏液,尿少,精神萎靡。查体:呼吸深长,皮肤花纹,弹性差。前囟、眼窝明显凹陷,肢冷。脉弱,心率160次/分,心音低钝。根据其脱水程度,其失水量约为体重的() A. 1%~5% B. 6%~9% C. 10%~15% D. 16%~20% E. >20% 参考答案:C 答案解析:此患儿尿少,前囟、眼窝明显凹陷是脱水表现;皮肤花纹,肢冷,脉弱是外周循环衰竭表现,故为重度脱水。呼吸深长,精神萎靡,是酸中毒表现。重度脱水失水量占体重的10%以上。扩容阶段是用2:1等张含钠液按照20
第33题: [单项选择]Questions 19 to 21 are based on the conversation you have just heard.A. Peter’s recent favorite sports. B. Things going on with a boxer. C. Great achievements of a former boxer. D. Life experience of a heavyweight boxer. 参考答案:B 答案解析:[解析] 19-21 W:Hi,Peter,Iknow youare a greatfan of sports,right M:Yeah,my spare time is usually