第12题: [单项选择]What evidence do people from the west give to show that a higher speed limit is safe A. The long roads between the cities. B. The modem turbo-charged engine. C. The economic advantage. D. The current policies of Germany and Australia. 参考答案:D 答案解析:原文中有“People from this are argue that the examples of countries like Australia and Germany should dem
第13题: [单项选择]下列哪项不属利多卡因的药理特点()。 A. 低浓度时可产生感觉运动分离阻滞 B. 穿透力强,弥散性好 C. 起效快,注射后3~5min起效 D. 作用时间短,一般维持45~60min E. 一次用量不超过7mg/kg 参考答案:A
第17题: [单项选择]菌痢的确诊依据是() A. 粪培养阳性 B. 粪检有巨噬细胞 C. 粪便免疫学检查抗原阳性 D. 粪便镜检有大量脓细胞 E. 典型菌痢临床症状 参考答案:A 答案解析:急性菌痢诊断:①急性发作之腹泻(除外其他原因之腹泻),伴发热、腹痛、里急后重、脓血便或黏液便,左下腹压痛。②粪便镜检白细胞(或脓细胞)每高倍视野15个以上,可看到少量红细胞。③粪便培养痢疾杆菌阳性。临