有些题给的答案是错的
作者花点心思吧 今天才做两题答案怎么算 都不对 给的答案都是错的 太误人子弟了
小学数学培优 is not free (it costs 3.99), however it doesn't contain in-app purchases or subscriptions.
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The price of 小学数学培优 is 3.99.
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作者花点心思吧 今天才做两题答案怎么算 都不对 给的答案都是错的 太误人子弟了
购买后下载不了
习题集不错,对提升孩子思考能力有帮助,推荐!