2019春八年级地理下册第八章西北地区检测卷习题课件（新版）新人教版.ppt

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NY T 237-1994 西北地区水地春小麦生产技术规程.pdf

NY T 236-1994 西北地区旱地冬小麦生产技术规程.pdf

NY T 239-1994 西北地区春玉米生产技术规程.pdf

NY T 240-1994 西北地区夏玉米生产技术规程.pdf

NY T 241-1994 西北地区地膜玉米生产技术规程.pdf

NY T 235-1994 西北地区水地冬小麦生产技术规程.pdf

NY T 237-1994 西北地区水地春小麦生产技术规程.pdf

NY T 238-1994 西北地区旱地春小麦生产技术规程.pdf

LY T 1876-2010 中国西北地区森林可持续经营指标.pdf

NY T 239-1994 西北地区春玉米生产技术规程.pdf

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