試題詳解

22.Which of the following statements about autoimmunity are correct? (Select all that apply.)
(A) Aulommune diseases result from an imbalance in antigen tolerance induced by regulatory T cells.
(B) Autoimmune diseases are always caused by persistent viral infections.
(C) Ankylosing spondylitis (僵直性脊椎炎) is an example of an autoimmune disease.
(D) High levels of IL-2 can be detected in the synovial fluid ofpatients with rheumatoid arthritis.
(E) Autoimmune diseases arise when the immune system mistakenly targets self-antigens.