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面颊部开放性损伤后12小时，局部的处理宜：（）
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雨量加权平均法不太适用于（）的地区。
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一组砂浆的试件应为()个
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木材的含水率发生改变的时候，拼板的变形不可避免，为了防止和减少拼板发生翘曲的现象，经常要采用（）的方法加以控制。
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佳佳今年4岁，是个非常听话的小女孩。可是有一天吃午饭时，由于心爱的小狗不见了，佳佳哭了很久。起初妈妈还耐心地劝她，可后来妈妈有些不耐烦了，就说“你再哭，小狗就永远也不回来了！”佳佳一听，越哭越凶，使平时一向认为佳佳是个乖女孩的妈妈觉得无法理解了。请根据这一案例分析幼儿理解的特点。
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垂体瘤的典型早期视野改变为什么象限缺损（）
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Once we learn the rules for map reading, they seem so simple: up is north, blue is water, a star stands for a capital. But when and how do we learn to read a map? Research shows that even three-year-olds can master, at least in a basic way, the key map-reading concept(概念): a map is a two-dimensional symbol(二维的符号)for three-dimensional space. Linda Acredolo of the University of California, showed a child a map of a room pointed out on it where a toy was hidden and asked the child to find that toy. Depending on the maps orientation(方位), about half the three-year-olds could successfully do so. Three years may be the age at which the ideas become fully understood. Judy Deloache of the University of Illinois let children watch her hide a small toy in a scale model of a room and asked them to find a large one in a real room. "A three-year-olds can do it, but a two-year-olds has no idea that the model has to do with anything larger, " she says. But even if the basic concept is there early, Lynn Liben and Roger Downs of Pennsylvania State University found that children still have a lot to learn. Second graders believe that north is always at the top of a map because of the hanging maps they have seen. "If you asked them to close their eyes and point in the direction of north, often theyll point straight up," says Lihen. She says that children get map-reading skills gradually, and teachers must begin by using maps of familiar areas: their own classrooms, homes, and neighbourhoods.The first two experiments show that______.A．children have better understanding than grown-upsB．children have special natural ability for map readingC．children are more interested in toys than in mapsD．children can start to learn map-reading early
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绘制简单工艺管线施工图
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由器质性病变导致的长期开口困难称为（）
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请简述以下几种锯的用途。