第7题: [多项选择]目前在中国正进行着一场意义深远的社会和经济改革。这个伟大的改革使封闭的计划经济变成了以市场为基础的开放经济。 参考答案:At present, a sweeping and profound social and economic reform is being carried out in China. This remarkable transformation has turned a closed planned economy to an open market-oriented economy.