题目

2011年第一季度我国一年期定期存款利率为3％，而消费价格指数为5％，同期居民储蓄仍然大幅增长。对居民储蓄大幅增长的合理解释是        ①人们要应对未来住房、养老等支出     ②居民的消费趋于饱和 ③储蓄对利率的变化有弹性             ④股票、债券等有价证券投资风险大 A．①②         B．①④        C．②③         D．②④Wind __________electricity in many parts of the world. A. is widely used to produce B. is widely used to producing C. widely used to produce D. widely used to producing