No worker and no engineer           who it is that is           for the explosion of the chemical factory.

A．know; to blame

B．would know; blamed

C．know; to be blamed

D．knows; to blame

存管账户：亦称为（），指存管银行为每个投资者开立的，薄记投资者用于证券买卖用途的交易结算资金存管台账。客户交易结算资金薄记台账记载客户交易结算资金的变动明细，并与客户的银行结算账户（即：借记卡）和客户的证券资金账户之间建立一一对应的银证转账对应关系。