問題詳情
18. The blood-brain barrier _____.
(A) is formed by tight junctions
(B) is formed by oligodendrocytes
(C) tightly regulates the intracellular environment of the CNS
(D) uses chemical signals to communicate with the spinal cord
(E) provides support to the brain tissue
參考答案
答案：A
難度：適中0.590909
統計：A(13),B(1),C(2),D(0),E(4)