id	keyword
ajoaa-1128	china
ajoaa-1128	agricultural
ajoaa-1128	specialization
ajoaa-1128	production
ajoaa-1128	development
ajoaa-1128	regions
ajoaa-1128	percent
ajoaa-1128	rural
ajoaa-1128	national
ajoaa-1128	journal
ajoaa-1128	statistics
ajoaa-1128	index
ajoaa-1128	advantages
ajoaa-1128	data