By law, when one makes a   large purchase,he should have____ opportunities to   change his mind.     [ ]

A. accurate  

B. annual      

C. actual      

D. adequate

个人网银中的“网银互联”业务拥有以下哪几个功能（）？

A、加急汇款

B、跨行账户查询

C、跨行资金转入

D、购买他行理财产品