“history of corn cultivation in China”的概念、定义、翻译、参考文献-科学参考

单词	history of corn cultivation in China
释义	history of corn cultivation in China Encyclopedia 管理学〔中国作物栽培史〕释 history of corn cultivation in China中国玉米栽培史玉米引入中国后，逐渐人工种植的本土化过程。玉米虽然是外来物种，但经过几百年的发展，已成为中国四大粮食作物之一。
随便看	policy on the equalization of high schools policy operation cycles policy owner policy paradigm policy paradox policy pledge loan policy problem identification policy process evaluation policy proposal evaluation policy research center for environment and economy, ministry of ecology and environment of the people's republic of china policy results forecast policy-science of law policy sciences policy sciences movement policy science theory policy science tradition of Lasswell & Dror policy secondary market policy secondary market in the United States policy selection policy space policy style policy surrender policy system of ecological civilization policy termination policy tools for reducing carbon emissions

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