...货;;制约因素;;价格发现;;套期保值 [gap=509]Keywords: farmers;agricultural products;agricultural futures;impeding factors;finding prices;hedging ...
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Over the past decades, the evidence on the biological requirements for appropriate nutrition, recommended feeding practices and factors impeding appropriate feeding has grown steadily.
在过去的几十年中，适当营养的生物需求证据、建议的喂养方式和阻碍适宜喂养的因素都有稳步增长。
At the same time, analysis the factors impeding the China's contemporary social integration selectively.
同时，对中国当代社会整合的阻碍因素进行了选择性分析。
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