第1题: [单项选择]女婴,9个月,呕吐,腹泻3天,大便10余次/日,呈暗绿色,有腥臭味,尿量极少,皮肤弹性差,前囟、眼窝明显凹陷,四肢厥冷。大便镜检白细胞偶见。血清钠131mmol/L。进行补液治疗,首批静脉输液应给予() A. 2:1等张含钠液20ml/kg B. 2:1等张含钠液100~120ml/kg C. 1/2张含钠液100~200ml/kg D. 2/3张含钠液50~100ml/kg E. 1/2张含钠液50~100ml/kg 参考答案:A
第27题: [单项选择]关于生活常识,下列说法错误的是()。 A. 吃松花蛋时佐以食醋,是为了减少松花蛋的涩味 B. 电灯泡中加入少量红磷,是为了防止灯丝氧化 C. 纯碱使馒头稀松多孔,是因为化学反应产生二氧化碳 D. 千滚水不宜饮用,是因为其中的细菌含量会大大增加 参考答案:D 答案解析:千滚水是指反复煮沸的水。水在反复煮沸的过程中,滋生出亚硝酸盐、重金属等有害物质,长期饮用会影响人的身体健康。因此D项错误,当选。
第36题: [单项选择]From the passage we know the quality of the products ________. A. is as high as before B. is lower C. is improved D. is reduced 参考答案:A 答案解析:[解析] 事实细节题。从文章的第二段倒数第三句,The quality of our products remains the same—only the finest chemicals are u
第37题: [单项选择]He was facing charges on forgery in a court of law but he hired a good attorney to A. get off B. get through C. get by D. get away 参考答案:A 答案解析:习语辨析。get off使获释或减轻处罚:The attorney got her client off with a slap on the wrist.这位律师使她的当事人仅受到轻罚就获释了。ge