第12题: [单项选择]What has happened since the end of the ice age() A. Many species have developed a habit of migration. B. Many species have become less sensitive to climate. C. Many new species have come into existence. D. Many species have moved further north. 参考答案:D
第16题: [单项选择]男性,70岁,30多年吸烟史。半年前咳嗽,咳痰,发热。X线检查显示右肺整个下叶不均匀阴影,经抗感染治疗3周,咳痰、发热症状减轻,但仍有咳嗽,且为干咳。再次X线检查显示右肺门处不规则分叶状巨大阴影,边界不清,支气管镜活检,显微镜下见:细胞呈巢状排列,少部分细胞巢中央有层状角化物,细胞间可见细胞间桥,最可能的诊断是() A. 肺鳞状细胞癌 B. 大叶性肺炎 C. 小叶性肺炎 D. 慢性纤维空洞型肺结核 E. 原发性肺结核 参考答案:A