Unlike competitive running , race walkers must always keep some portion of their feet in contact with the ground.

A．run

B．runner

C．runners

D．running race

根据人民币银行结算账户管理的有关规定，下列专用存款账户中，经过中国人民银行批准可以支取现金的有( )。

A．单位银行卡专用存款账户

B．财政预算外资金专用存款账户

C．金融机构存放同业资金专用存款账户

D．政策性房地产开发资金专用存款账户