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体育课程内容分类为：体育知识与技术类；运动参与类；体育活动经验类。( )
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The estimates of the numbers of home-schooled children vary widely. The U. S. Department of Education estimates there are 250,000 to 350,000 home-schooled children in the country. Home school advocates put the number much higher at about a million. Home school advocates take a harsh attitude toward home schoolers, perceiving their actions as the ultimate slap in the face for public education and a damaging move for the children. Home schoolers harbor few kind words for public schools, charging shortcomings that range from lack of religious perspective in the curriculum to a herdlike approach to teaching children. Yet, as public school officials realize they stand little to gain by remaining hostile to the home school population, and as home schoolers realize they can reap benefits from public schools, these hard lines seem to be softening a bit. Public schools and home schoolers have moved closer to tolerance and, in some cases even cooperation. Says John Marshall, an education official," we are becoming relatively tolerant of home schoolers. The idea is, let’s give the kids access to public school so they’ll see it’s not as terrible as they’ve been told, and they’ll want to come back." Perhaps, but don’t count on it, say home school advocates. Home schoolers oppose the system because they have strong convictions that their approach to education--whether fueled by religious enthusiasm or the individual child’s interest and natural pace--is the best. "The bulk of home schoolers just want to be left alone.” Says Enge Cannon, associate director of the National Center For Home Education. She says home schoolers choose that path for a variety of reasons, but religion plays a role 85 percent of the time. Professor Van Galen breaks home schoolers into two groups. Some home schoolers want their children to learn not only traditional subject matter but also "strict religious doctrine and a conservative political and social perspective". Not incidentally, they also want their children to learn--both intellectually and emotionally--that the family is the most important institution in society." Other home schoolers contend "not so much that the schools teach heresy, but that schools teach whatever they teach inappropriately." Van Galen writes. "These parents are highly independent and strive to take responsibility for their own lives within a society that they define as bureaucratic and inefficient. Public schools are softening their position on home schooling because.
案例： 某高层办公楼，总建筑面积137500m2，地下3层，地上25层。业主与施工总承包单位签订了施工总承包合同，并委托了工程监理单位。 施工总承包单位完成桩基工程后，将深基坑支护工程的设计委托给了专业设计单位，并自行决定将基坑支护和土方开挖工程分包给了一家专业分包单位施工。专业设计单位根据业主提供的勘察报告完成了基坑支护设计后，即将设计文件直接给了专业分包单位。专业分包单位在收到设计文件后编制了基坑支护工程和降水工程的专项施工组织方案，方案经施工总承包单位项目经理签字后即由专业分包单位组织了施工，专业分包单位在开工前进行了三级安全教育。 专业分包单位在施工过程中，由负责质量管理工作的施工人员兼任现场安全生产监督工作。土方开挖到接近基坑设计标高(自然地坪下8.5m)时，总监理工程师发现基坑四周地表出现裂缝，即向施工总承包单位发出书面通知，要求停止施工，并要求立即撤离现场施工人员，查明原因后再恢复施工。但总承包单位认为地表裂缝属正常现象没有予以理睬。不久基坑发生了严重坍塌，并造成4名施工人员被掩埋，经抢救，3人死亡，1人重伤。 事故发生后，专业分包单位立即向有关安全生产监督管理部门上报了事故情况。经事故调查组调查，造成坍塌事故的主要原因是由于地质勘察资料中未表明地下存在古河道，基坑支护设计中未能考虑这一因素所致。事故造成直接经济损失80万元，于是专业分包单位要求设计单位赔偿事故损失80万元。 请指出上述整个事件中有哪些做法不妥，并指出正确的做法。
减少指令执行周期数是RISC计算机性能提高的基础，它是通过 (2) 、指令控制部件 (3) 微代码、 (4) 寄存器、 (5) 寻址方式、限制访问内存来实现的。 (6) 都是与RISC芯片有关的名词。
试分析影响三级跳远、羽毛球两个项目运动员参加比赛结果(名次及竞技水平)的决定因素的异同点
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