37. The endocrine system and the nervous system are chemically related. Which of the following substances best illustrates this relationship?
(A) Calcium.
(B) Estrogen.
(C) Calcitonin.
(D) Norepinephrine
答案:登入後查看
統計: A(1), B(0), C(0), D(0), E(0) #3308516
統計: A(1), B(0), C(0), D(0), E(0) #3308516