[多选] 改革开放后，我国城镇住宅体制经历了以“三三制”为代表的公有住房出售阶段，所谓“三三制”，即由（）共同承担占住宅造价50％的标准价。

择伐 定量分析法 什么是短时超温爆管？破口有何特征？ Why did the early settlers come to America? Who were the Pilgrims? Who were the Puritans? What were the features in the colonial period which had influence on later American development? People sing the national anthem in（） 改革开放后，我国城镇住宅体制经历了以“三三制”为代表的公有住房出售阶段，所谓“三三制”，即由（）共同承担占住宅造价50％的标准价。