North China Plain is the major grain-producing areas of China which affects on provisionment.

华北平原是我国的粮食主产区，对我国的粮食生产发挥着极其重要作用。

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North China Plain is the major grain-producing areas of China which affects on provisionment.

华北平原是我国的粮食主产区，对我国的粮食生产发挥着极其重要作用。

youdao