The autistic girl Hannah has some unusual gifts like hypersensitivity to sound and image and photographic memory. </p></p>

The immunologic defense abnormality may result in A: immunologic deficiency disease B: autoimmune disease C: Tumorigenesis D: Hypersensitivity

The hypofunction of immune defense can lead to susceptibility to _____ A: tumor B: hypersensitivity C: repeated infection D: autoimmune diseases E: graft rejection

All of the following are functions of TH1 cells EXCEPT: A: contributes to autoimmunity B: enhances APC activity C: enhances TC activity D: involved with delayed type hypersensitivity reactions E: protects against intracellular pathogens

超敏反应（Hypersensitivity）是机体对某些抗原初次应答后，再次受到相同抗原剌激时，发生的一种以机体生理功能紊乱或组织细胞损伤为主的特异性免疫应答。

【单选题】关于超敏反应(hypersensitivity)的叙述正确的是,是指机体受到某些抗原刺激时,出现生理功能紊乱或组织细胞损伤的异常适应性免疫应答。 A. 是一种正常的适应性免疫应答 B. 只引起生理功能紊乱 C. 仅造成组织细胞损伤 D. 可能同时造成生理功能紊乱和组织细胞损伤