填词:"改变( )" "改良( )" "改进( )" "改正( )" "改革( )" "改善( )"

问题描述:

填词:"改变( )" "改良( )" "改进( )" "改正( )" "改革( )" "改善( )"

"改变(计划)" "改良(土壤)" "改进(技术)" "改正(缺点)" "改革(*)" "改善(民生)"