第1题: [单项选择]下列抗体中是Graves病的直接致病原因的是() A. TSAb B. TSBAb C. TGI D. TPOAb E. TgAb 参考答案:A 答案解析:95%的Graves病患者血清中检出由B淋巴细胞产生的甲状腺刺激性抗体(TSH受体抗体)。TSBAb是自身免疫甲状腺炎导致甲减的原因之一。
第17题: [单项选择]Questions 14 ~ 17 are based on the following dialogue between two friends.What is Tom going to do in the afternoon A. Finish his homework. B. Cut grass. C. Plant trees. D. Buy groceries. 参考答案:C