第7题: [单项选择]29岁经产妇,人工流产术后半年,术后断续阴道流血,量不多,术后一直避孕。尿妊娠试验阳性,查子宫鸭卵大,软。胸片见两肺中下部有多处散在棉絮团影。本例最可能的疾病是() A. 吸宫不全 B. 葡萄胎 C. 侵蚀性葡萄胎 D. 绒毛膜癌 E. 流产先兆 参考答案:D 答案解析:根据“胸片见两肺中下部有多处散在棉絮团影”可基本排除吸宫不全、葡萄胎和流产先兆。再根据患者既往无葡萄胎病史,可进一步判断本例最可能的疾病是绒毛膜癌。继发于葡萄胎的绒癌绝大多数在1年以上发病,而继发于流
第31题: [单项选择]The conversation had been carried on chiefly in French, a language which Mr. Steward was perfectly acquainted.( ) A. carried on B. in French C. which D. perfectly 参考答案:C 答案解析: