【名词&注释】
委托人(principal)、兑换率(rate of exchange)、借记卡(debit card)、借款人(borrower)
[多选题]温州银行允许办理以下类型的委托理财业务()
A. 一个委托人对应一个借款人(borrower) B. 多个委托人对应一个借款人(borrower) C. 一个委托人对应多个借款人(borrower) D. 多个委托人对应多个借款人(borrower)