第10题: [单项选择]患者,男性,46岁,体检,超声检查:胆囊腔内未见液性回声,可探及64mm×52mm的低回声,形态不规则,内部回声不均匀,内见强回声团伴声影,该低回声与肝脏界限不清,多普勒超声显示低回声区内高速动脉样血流信号。最可能的诊断是() A. 胆管细胞肝癌 B. 蕈伞型胆囊癌 C. 实块型胆囊癌 D. 混合型胆囊癌 E. 肝细胞肝癌 参考答案:C 答案解析:这是胆囊窝的较大实性肿块,故B、D皆可除外,主要鉴别点在于是原发性肝癌还是胆囊癌浸润肝脏。由于肿块内有强回声团伴声影,这是胆囊结石的特征,结石的长期慢性炎性刺激可导致癌变发生,其后胆囊癌生长将结石包裹
患儿在治疗过程中突然出现烦躁不安,呼吸困难,心率160次/分,肝肋下2cm,肺底可闻湿啰音,最可能的并发症是() A. 高血压脑病 B. 急性肾衰竭 C. 急性肝衰竭 D. 急性呼吸衰竭 E. 充血性心力衰竭 参考答案:E 答案解析:
肾炎因钠、水潴留,最易发生心力衰竭并发症。
第37题: [单项选择]Why is the problem of drinking and driving difficult to solve A. An alcohol is easily obtained. B. Drinking is linked to organized crime C. Legal prohibition has already failed D. Legislation alone is not sufficient 参考答案:D 答案解析:推断题。由文章最后一段中“legal prohibition didn't stop drinking,but encouraged political corruption and organize