Taobao is Asia’s largest retail（零售的） network platform, people can buy and sell many kinds of things．
A. when
B. whose
C. that
D. where
网友回答
A. when
B. whose
C. that
(答案→)D. where
解析：考查定语从句。先行词为network platform，从句中缺少地点状语，故用where,句意：淘宝网是亚洲最大的零售网络平台，在这个平台中人们可以买卖许多种物品。所以选D。