阿摩線上測驗
48. What did scientists discover in 1998?
(A) Why older people could grow new neurons.
(B) How neurons increased in young people.
(C) That young people lost many neurons.
(D) That neurons could increase in older people.
答案：登入後查看
統計： A(75), B(11), C(11), D(190), E(0) #2030921
統計： A(75), B(11), C(11), D(190), E(0) #2030921
