选择题：There are some differences in crop species and technical lev

题目内容：

There are some differences in crop species and technical level in different regions， because of the （）results of crop cultivation.

A.Universality

B.Regionality

C.Seasonality

D.Continuity

参考答案：

Rape is a common oil crop.

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There are only leaves growing on cotton leaf branches， without bolls.这是一个关于CropCultivationScience的相关问题，下面我们来看

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As long as the number of plants is enough， soybean can get high yield.这是一个关于CropCultivationScience的相关问题，下面我们来看

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