第5题: [单项选择]男,12岁,突然上腹剧痛,不能直腰,于发病30min后来诊。查:BP110/80mmHg,P110次/min,痛苦面容,全腹压痛、反跳痛和肌紧张,以剑突下为著,肝浊音界位于右锁骨中线第6肋间,肠鸣音消失,血Hb12.1g/dl。WBC7.0×109/L,尿淀粉酶128U/L。进一步有意义的首选检查是() A. 腹部CT B. 腹部立位平片 C. 腹部B超 D. 腹腔灌洗 E. 生化检查 参考答案:B 答案解析:患儿突发上腹痛、伴有腹膜炎表现,肠鸣音消失,考虑为外科急腹症,应首先行立位腹平片检查。
第31题: [单项选择]She was working for the whole day and just ______ to have a piece of bread. A. broke down B. broke off C. broke through D. broke up 参考答案:B 答案解析:[解析] 本题考查同为break所形成的短语的辨析。break down意为“毁掉,制服”;break off意为“中断,暂停”;break through意为“突破,突围”;break up意为“打