21.B【解析】细节理解题,根据第一段Let the WHO'S' WHO IN THE ZOO show your little ones what it means to earn and save money as well as share in the enjoyment of spending their well-carned cash. WHO'S WHO IN THE Zo专为儿童理财而设计22.A【解析】细节理解题。根据 Lcopard中的 Reward your kids with pocket money for completing 'missions': houschold chores, achicvements, ctc.23.D【解析】细节理解题,儿童理财的APP中5种动物对应5 Buffalo项银行业务,根据中的 Kidz can requcst to withdraw cash or purchase airtime and data using their savings.