問題詳情
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.
參考答案
答案：A
難度：簡單0.731707
統計：A(30),B(2),C(4),D(3),E(0)