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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?[WeChat] Two WeChat are online at the same time, one is a strong man in the workplace and one is a literary youth.板栗看着展露笑容的两个少女，苦涩地想：我从来不愁么？**********沾了青山书院的光，清南村的人对边关的消息总是知道的比别的地方多，除了县衙会定期送邸报过来，似乎书院还另有消息途径。　　权娜拉饰演韩素锦，她是女子监-狱妇科负责人，是一名内科医生兼修精神科。活泼开朗，为了查明弟弟的死因而到监-狱医院精神科当志愿者。物欲横流的都市森林，华灯初上，酒绿灯红。 发廊小姐横尸郊野，娇好头颅不翼而飞，唯有一叠同号彩票，隐埋惊人真相；冷血悍匪洗劫银行、绑架少妇，致命危机如箭在弦，一触即发；一桩平常劫案，暗藏机关万重，一夜之间，二奶、私生子、副市长……全部浮出水面，环环相扣，案中有案，令人拍案惊奇；持枪匪徒横贯四省，出没盘山公路之间，杀人越货，疯狂洗劫，数十司机血染长途。是匪徒凶残，还是别有玄机？…… 恶性案件层出不穷，市民百姓人心惶惶。在刑侦队长白占军的率领下，专案人员奔走案发现场，寻根究底，紧急追踪黄夫人不由得重新审视这丫头，见她眼神灵动，浅笑嫣然，虽面带稚气，却言语不漏半点消息，心下不知是喜是忧。三十首耳熟能详分手后必听的欧美神曲 -- Taylor Swift