2017年考研英语完型填空模拟题及答案(六)
出国留学考研网为大家提供2017年考研英语完型填空模拟题及答案(六),更多考研资讯请关注我们网站的更新! 2017年考研英语完型填空模拟题及答案(六) Aging poses a serious challenge to OECD(Organization of Economic Co-operation and Development)countries,in particular,how to pay for future public pension liabilities. And early retirement places an__1__burden on pension financing. There is no easy solution,but__2__retirement could help. Early retirement may seem like a worthy individual goal,but it is a socially__3__one,and makes the present public pension system difficult to sustain for long. The__4__reason is that mo... [ 查看全文 ]2017年考研英语完型填空模拟题及答案(六)的相关文章