The aesthetic kernel manifested in Shandong's literature is the strong sense of social participation and the consistent concern over real life and the destinies of average people.
山东文学所体现的美学精神的基本内核，是强烈的社会参与意识及对于现实生活和普通人生命运的执着关注。
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In this paper, based on NA samples, we will prove that recursive density kernel estimators are consistent inr-order mean, and the pointwise strong consistency under suitable conditions.