IV型超敏反应的主要病理特点是
A.免疫球蛋白在小血管壁沉积
B.血管内皮坏死
C.结缔组织水肿
D.小血管周围单核细胞浸润
E.小血管周围中性粒细胞漫润
参考答案:D
The Great Wall _____ in the Qin Dynasty.
A. comes into being
B. came into being
C. was come into being
D. dated back to
典型萎缩性鼻炎的病理改变是()
A.粘膜和骨部血管发生海绵状静脉丛炎
B.闭塞性动脉内膜炎
C.粘膜、腺体、骨膜和骨质萎缩、纤维化
D.粘膜上皮鳞状上皮化
E.以上都对