单项选择题
A．To retain the ownership of the various chain shops． B．To improve the efficiency among various chain shops． C．To ensure more flexibility of the various chain shops．
A．there is more competition for chief executives in Europe． B．lifers in Europe have more chances to get to the top． C．it takes lifers in Europe less time to get to the top． D．executives in Europe hop less frequently from job to job．
A．raise B．arise C．rise D．arouse