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Research on Photosynthetic Daily Course of Ulmus crassifolia and Its Influencing Factors;

南方岩榆光合作用日变化及其影响因子研究

There are many differences between the southern rock paintings and the northern rock paintings on the cont-ents, the skill, the places, the size, the composition and the results.

北方岩画的审美特质是阳刚美或壮美,南方岩画的审美特质可以说是阴柔美或优美。