患者，女，43岁。右乳腺癌手术放疗结束后出现咳嗽，多为干咳无痰，时有低热。胸部X线片显示右上、中肺野出现大片状致密阴影，CT扫描显示病灶跨叶分布，病灶边缘较平直。请问该患者应诊断为（）
A.过敏性肺炎
B.真菌性肺炎
C.放射性肺炎
D.间质性肺炎
E.肺炎型肺癌
参考答案：C
解析：患者有放疗史，X线表现示右上、中肺野出现大片状致密阴影，与放射野吻合，CT 扫描显示病灶跨叶分布，病灶边缘较平直，属于放射性肺炎的影像学表现，故选之。
根据对话内容，从对话后的选项中选出能填入空白处的最佳选项，并将答案填写在本题下面的横线上。选项中有两项多余选项。 Hi, Linda！What are you doing？ Hi, Bob! I’m preparing for the test tomorrow. 小题1: Well, the library is full and the classroom is too noisy. Are you ready for the test? I’m afraid not. I feel very nervous. We don’t have much time left. _小题2: Maybe that can help. Good idea. How many units would be included? Three. That is Unit 4, Unit 5 and Unit 6. Really? I thought Unit 6 would be not covered. It will. _小题3: You go first. All right. Name 3 European countries. Easy. France, Germany and Russia. I can even say more. 小题4: Now it’s your turn to ask questions. OK. What are the seven continents of the world? Asia, Europe, Africa, and … I’m really can’t remember them all. 小题5: You will have time
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