单项选择题
A．lifelong training of employees B．policies of lifelong employment C．attitudes towards lifelong employment D．employers' interest in lifelong employment
A．job changes have career advantages B．it's boring to work in only one company C．only the employer benefits from such employment D．stable employment seldom offers better opportunities
A．it is still well-received by all the staff members today B．it is valuable to the employer and the employees C．it is helpful for attracting young employees D．it is both useful and interesting