Second , li - onl tlle poillt of vie ' x ( ) f pron1otil1g t11c eflicic11t tra11sfcre11ces , ncs structure is bcttcr ti1an ns " l structure because there are relatively more efficient transferences taking place in ns structure than in ncs structure 第二,从促进有效率的控制权转让发生方面来看,同ncs结构相比,有相对较多的有效率的控制权转让在ns结构下发生。