第4题: [单项选择]中上部持续剧痛,并阵发性加剧多为 A. 急性弥漫性腹膜炎 B. 胆道蛔虫症 C. 消化性溃疡 D. 急性胰腺炎 E. 肠结核 参考答案:D 答案解析:腹痛为急性胰腺炎的主要表现和首发症状,可为钝痛、刀割样痛、钻痛或绞痛,呈持续性,可有阵发性加剧,并可向腰背部呈带状放射,取弯腰抱膝位可减轻疼痛。不能为一般胃肠解痉药缓解,进食可加剧。疼痛多位于中上腹部
第7题: [单项选择]______, we keep records on all the experiments so that we may have enough data. A. As a whole B. As a rule C. On the average D. By all means 参考答案:B 答案解析:[解析] as a(general)rule:通常,一般来说。因此B最符合题意。例如:As a rule,he doesn't go to the office on Saturdays.(星期六他通