[KongchangAI]
Unverified80% confidenceFactTime unknown

RAZ(Reading A-Z)分级为aa-Z共29级,为美式发音体系,题材以科普非虚构为主,适合4岁以上有一定基础的孩子做泛读拓展

1
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80%
Confidence
Long-term
Relevance
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