By found Trest 's model again , the paper analyzes the advantages and shortcomings of three typical investment tools .
本文通过重构特斯特模型，从一个新的视角分析了三种典型投资工具的利弊。
Two , courtesy trest person , service enthusiasm , receive Li quick , have to beg surely should .
礼貌待人，服务热情，接礼迅速，有求必应。
trest