近几年,大气污染一直是公众关注的热点。2013年中央财政已拨付50亿元支持京津冀及周边地区支持大气污染防治,2014年中央财政安排了100亿元专项资金,对重点区域大气污染防治实行“以奖代补”。这说明( )①财政具有促进国民经济平稳运行的作用②行政手段在国家宏观调控体系中不可或缺③市场解决不了环境等公共产品的供给问题④财政投入为改善环境提供了重要的物质保障
Shirley, a real book lover, often brings home many books to read __________ the library.
He was a good student and scored _________ average in most subjects.
Nick, it’s good for you to read some books __________China before you start your trip there.
This shop will be closed for repairs ____ further notice.
Sometimes proper answers are not far to seek______ food safety problem.