The results were that: (1) The counting accuracy of 4-year-old children was higher than 3-year-old children's, but the larger the sets, the lower the counting accuracy;
研究发现：（1 ）随着数列数目的增大，3、4岁儿童数数精确性呈下降趋势，但4岁儿童在各项任务上的数数精确性显著高于3岁儿童；
The results indicated:(1) The scores of 3-year-old children's consequent counterfactual reasoning were lower than that of 4 and 5-year-old children.
结果表明：1.3岁儿童在结果反事实推理中的得分显著低于4岁和5岁儿童，而4岁和5岁儿童的得分并不存在显著差异；
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