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秦枫自然同意了，本就想要盖的，不过一直不得闲而已。是的，板栗也要出征了，他准备带着孙铁他们几个一同投军，他再也不想缩头了。该剧根据真实故事改编，讲述了一个普通家庭在不同历史时期，以非同寻常的奋斗牺牲、执着坚守、爱心奉献传承优良家风的动人故事 。　　NBC终于正式宣布续订《夜班医生》第四季。The research on classification ability is more in kindergartens and more in primary schools. Research by cognitive psychologists has found that children under 0-1 years old basically have no classification ability, and they mainly rely on individual perception. The classification ability of children aged 1-3 has begun to sprout, but the concept of "category" has not yet formed. The classification of children aged 3-5 is basically still based on external perceptible dimensions such as shape and color. For example, children in small classes in kindergartens are asked to classify red plastic balls, red apples and bananas. They will divide the balls and apples together, either according to the shape (circle) or according to the color (red), but they will not put apple kernel bananas together according to the function (edible). What if you add another celery?