阿摩線上測驗
50. Which of the following is not true about helper T cells?
(A) They secrete antibodies.
(B) When activated, they secrete IL-2 and other cytokines.
(C) They are subject to infection by HIV.
(D) They function in both cell-mediated and humoral immune responses.
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統計： A(246), B(15), C(18), D(16), E(0) #921515
統計： A(246), B(15), C(18), D(16), E(0) #921515
