作者: Maria Cristina Caselli , Elizabeth Bates , Paola Casadio , Judi Fenson , Larry Fenson
DOI: 10.1016/0885-2014(95)90008-X
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摘要: … than 100 words at or before 16 months. Such large individual differences in rate of language development present serious problems for the idea that all normal children develop on a …