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判断并改正：体格是人体在遗传性和获得性的基础上，表现出来的形态和机能上综合的、相对稳定的特征。
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【真题试题】（2008年多项选择第79～82题） 甲公司与乙公司签订合同，约定由乙公司为甲公司制造、安装一套预氧化炉，并负责预氧化炉的调试，甲公司支付加工费100万元，其中设备交付后支付80万元，安装调试合格后付清剩余加工费。乙公司如期交付了设备，甲公司支付了80万元加工费。但乙公司一直未派员调试，甲公司遂拒绝支付剩余加万元加工费。乙公司向甲催要剩余加工费未得，便将其对甲公司的20万元债权转让给丙公司。丙公司向甲公司主张债权未得，经调查得知，丁公司尚欠甲公司加工费20万元，因甲公司加工产品不合格而一直未还，已过履行期。甲公司曾向丁公司发出给催款通知书，但未提起诉讼或申请仲裁。丙公司遂向丁公司主张代位权。甲公司因业务调整，将该套预氧化炉出卖给戊公司。戊公司在生产过程中，预氧化炉发生爆炸，炸伤来公司参观的客户王某，引起纠纷。 【真题试题】（2008年案例分析第79题）
眼球没有器质性病变而戴矫正镜片后视力仍不能达到正常，称为________。
Various innovations have been introduced as ways to break off our system which forces students through a series of identical classrooms in which teachers do most of the talking and students have little opportunity to respond. Among these innovations are team teaching and teacher aides, non-graded elementary and secondary schools, independent study, curricula focused on helping students discover things for themselves rather than on trying to tell them everything, and schools designed for maximum flexibility so that students can work alone, or in small groups, or take part in large group instruction via diverse media. The aim of all these innovations is to adapt instruction more precisely to the needs of each individual student. Many people who have a strong dislike to organizing instruction scientifically and to bringing new technology into the schools and colleges fail to realize that the present system is in many respects mechanical and rigid. The vast differences in the ways students learn are disregarded when they are taught the same thing, in the same way, at the same time. There is no escaping the evidence that many students themselves feel little enthusiasm and even outright hostility for the present way schools and collages are organized and instruction is handled. Many of them resent technology, but what they object to is usually technology used as a means for handling a large number of students. Or it is programming which merely reproduces conventional classroom responds and learns, reaching new plateaus from which to climb to higher levels of understanding. Technological media can store information until it is needed or wanted. They can distribute it over distances to reach the student where he happens to be. They can present the information to the student through various senses. They can give the student the opportunity to react to the material in many ways. In short, the student’s opportunities for learning can be increased and enhanced by using a wide range of instructional technology. All the available resources for instruction, including the teacher, can work together to create conditions for maximum effective learning. The author suggests that the basic role of the teacher in the educational system should be ______.
简答题 简述保护婴幼儿乳牙的措施。
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