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问题 单项选择题 A2型题

CT可见颅内圆形、椭圆形的均匀密度增高影，边界清楚，周围有环形密度减低影，局部脑室受压移位，中线移位。应考虑的疾病是（）

A.脑梗死

B.蛛网膜下腔出血

C.脑出血

D.脑挫裂伤

E.腔隙性脑梗死

答案

参考答案：C

改错题

短文改错

It was my 18th birthday yesterday. As the age is special for our teenagers, so my parents held a birthday party for me at home. With my parents and some of my good friends attend my birthday party, I really had unforgettable experience. We sang songs, dancing and played games together. We all enjoyed ourselves very much. During the party, my parent told me that from then on I was no longer a child and an adult. They also said I should be more independent and responsibly. Hearing their words, I was greatly encouraged. It was just in that moment when I felt I was a grown-up
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单项选择题 案例分析题

男，18岁。2天来发热伴腹痛、腹泻，日10余次，初为稀便，后为黏液脓血便，伴里急后重。粪常规检查WBC15～20/HP，RBC5～10/HP。

该患者诊断急性细菌性痢疾，其发病机制为（）。

A.痢疾杆菌素对结肠黏膜的直接损害

B.有侵袭力的菌株进入黏膜固有层、繁殖引起炎症溃疡

C.痢疾杆菌在肠腔内大量繁殖引起肠溃疡病变

D.结肠急性弥漫性、纤维蛋白渗出性炎症及溃疡

E.特异性体质对细菌毒素产生强烈过敏反应
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