第7题: [单项选择]肺褐色硬化是下列哪种疾病的形态改变 A. 机化性肺炎 B. 特发性肺纤维化 C. 慢性肺淤血 D. 大叶性肺炎 参考答案:C 答案解析:慢性肺淤血,除见肺泡壁毛细血管扩张充血更为明显外,还可见肺泡壁变厚和纤维化。肺泡腔除有水肿液及出血外,还可见大量含有含铁血黄素颗粒的巨噬细胞,称为心衰细胞。肺质地变硬,肉眼呈棕褐色,称为肺褐色硬化。
第13题: [单项选择]How long has the man stayed in Beijing A. He is looking for his watch. B. He is looking for his glasses. C. He is looking for his coat. 参考答案:A 答案解析:[解析] 根据对话内容:“Where is my watch ”可以推断出他正在找手表。故本题答案为A。 [听力原文] M: Where is my watch Have you see