Intheireffortstopersuadeustobuythatproduct,shopkeepers...

问题详情：

 In their efforts to persuade us to buy that product, shopkeepers have made a close study of human nature and have　　　all our little weaknesses.

A. divided                              B. arranged

C. classified                           D. separated

【回答】

C

知识点：动词

题型：选择题