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本文用实验方法研究3至6岁儿童四声的发展,发现阴平习得4岁组=5岁组=6岁组>3岁组;阳平调习得6岁组>4岁组>5岁组>3岁组;上声习得6岁组>5岁组>4岁组>3岁组;去声习得4岁组=5岁组=6岁组>3岁组。
In this paper, the experimental study of children aged 3 to 6 four-tone development, found that Yin Ping 4-year-old group = 5 years old group = 6 years old group> 3 years old group; yangping 6 years old group> 4 years old group> 5 years old group > 3-year-old group; on the sound acquisition of 6-year-old group> 5-year-old group> 4-year-old group> 3-year-old group; echogenic 4-year-old group = 5 years old group = 6 years old group>