問題詳情

39. A sudden increase in the concentration of_________causes the release of acetylcholine from   the axon of a nerve cell.
(A) Na+
(B) K+
(C) Ca2+ 
(D) Cl- 
(E) H+

參考答案

答案：C

統計：A:0,B:0,C:1,D:0,E:0

難度：計算中