10 滴滴梯[4,4’-Dichlorodiphenyltrichloroethane (DDT)]的正確分子結構為： 

(A)
(B)
(C)
(D)

71. The following substrate is a starting material in the synthesis of compounds having opioid activity. Show all products that would result from the reaction below.
(A) I, II, III
(B) I, III, IV
(C) I, III, V
(D) II, III, IV
(E) II, IV, V

8 下列胺基酸中，何者屬於鹼性胺基酸（basic amino acid）： 
(A)
(B)
(C)
(D)