培育市场主体，丰富服务供给是政府向社会力量购买公共文化服务要坚持的原则之一。

After being questioned by the police,she was released without      . [ ]

A. charge

B. control

C. command

D. request

In 2010, China enjoyed its best Winter Game results, ________ 11 medals in Vancouver-five gold

included. [ ]

A. to collect  

B. collected

C. being collected  

D. collecting

You _______ worry about him. He will get well soon. [ ]

A. needn't

B. can't

C. mustn't

D. may not

某对夫妇将每月的收人大部分都储蓄起来以为了将来的养老之用，我们对于这样的夫妇的投资建议是( )。

A．购买平衡型投资基金组合，购买养老险或投资型保单

B．购买单一指数型基金，购买基本需求养老保险

C．购买中短期比较看好的基金，购买短期储蓄险或房贷寿险

D．购买中长期表现稳定基金，购买子女教育基金

混凝土的碳化是由于空气当中的二氧化碳通过混凝土的孔隙进入混凝土中，与氢氧化钙反应所致。