hlmCOCA⁶⁴³⁷⁶ 基本例句 =heart-lung machine 心肺机 The analysis using both OLS and hierarchical linear model HLM shows that economic openness increases Urban- Rural Discrimination, based- on2002 Urban and Rural Migrant Household Investigation. 本文利用2002年的城市居民调查和流动人口调查数据通过最小二乘法和多层线性回归分析发现，经济开放程度越高的城市，户籍歧视现象越严重。591-lw