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For more than 40 years, a controlling insight in my educational philosophy has been the recognition that no one has ever been—no one can be—educated in school or college.46) That would be the case if our schools and colleges were at their very best, which they certainly are not, and even if the students were among the best and the brightest as well as conscientious in the application of their powers.The reason is simply that youth itself—immaturity—is an unconquerable obstacle to becoming educated. Schooling is for the young. Education comes later, usually much later. 47) The very best thing for our schools to do is to prepare the young for continued learning in later life by giving them the skills of learning and the love of it. Our schools and colleges are not doing that now, but that is what they should be doing.48) To speak of an educated young person or of a wise young person, rich in the understanding of basic ideas and issues, is as much a contradiction in terms as to speak of a round square. The young can be prepared for education in the years to come, but only mature men and women can become educated, beginning the process of their 40s and 50s and reaching some amount of genuine insight, sound judgment and practical wisdom after they have turned 60.This is what no high school or college graduates know or can understand. As a matter of fact, most of their teachers do not seem to know it. 49) In their obsession with covering ground and in the way in which they test or examine their students, they certainly do not act as if they understood that they were only preparing their students for education in later life rather than trying to complete it within the realms of their institutions.There is, of course, some truth in the ancient insight that awareness of ignorance is the beginning of wisdom. But, remember, it is just the beginning. From there on one has to do something about it. 50) And to do it intelligently one must know something of its causes and cures—why adults need education and what, if anything, they can do about it. 47

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对职工个人以股份形式取得的拥有所有权的企业量化资产,暂缓征收个人所得税。( )

A. 对
B. 错

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五、阅读下面文字,完成下面4个小题。 过不了多久,“智能”飞机的机翼可以像鱼尾一样自己弯曲,自动改变形状,从而改进升力或阻力。桥梁和电线杆在快要断裂时自己可以“感觉”到,它们会发出报警信号,然后自动加固自身的构造。空调机可以抑制自身震动。手枪只有在主人使用时才能开火。轮胎需要充气时,会礼貌地通知司机。反应灵敏的人工肌肉可以带动机器人或人的四肢。 以上仅仅是“智能材料”新科学预计将要产生的技术奇迹的一部分。一些智能系统已经悄悄走进了我们的日常生活,具有自我调节功能的汽车悬架可以识别路面变化,并相应改进自身的高度。智能滑雪板感觉到震动后马上就会产生减震的反作用力,增强边缘控制能。但它在许多重要领域的应用尚未到来。 马里兰大学智能材料和结构研究中心的詹姆斯西尔基斯说,“即将发生的第一件事”是出现“能对桥梁、建筑物和飞机机体等人类生活中造价高昂的物体结构受到的破坏发出早期警报”的系统。几个正在进行的项目把光纤用作桥梁的变形测定器。具有检测作用的纤维可与喷管一起使用,这些喷管可以把环氧树脂等加固材料直接喷到发现裂缝的地方。 许多科学家相信,在今后25年内,智能结构将大大改变飞机的形状,飞机将具有能在飞行过程中改变自身形状的控制面。 迄今为止,自适应系统依赖于三种基本类型的智能材料。一种是由遇到电和磁场后能够扩大、缩小或弯曲的物质构成的。陶瓷或薄膜等压电材料的使用尤为广泛,它们在受到挤压后会产生电压,或者反过来说,在施加电压时会变形。 压电传感器也可用在手枪枪柄上,这种手枪只有在查明主人的手特有的压力形式“标记”后才能开火。这种材料的灵敏度很高,据报道,用压电聚合物或凝胶制成的人造肌肉和皮肤已经能够在实验室的试验中“读出”布莱叶盲文。 压电物质能够在千分之几秒内作出反应,但它们的各项尺寸只能延展1%。因此,研究人员正在把压电物质和一种叫做“形状记忆合金”的第二类智能材料结合起来进行实验。它们即使在变形程度达到 15%的情况下,也能”记住”先前的外形,通过加热即可恢复。 第三类智能材料包括电或磁的流变体,这种神奇的液体在遇到电流或磁场时会改变它的粘性系数 (内在的粘度或抗流动性),当它处于常态下,可以毫不费力地用勺子搅动,但是当其中有电流穿过时,它会突然间变得像混凝土一样粘稠。研究人员相信,用这种液体将可以制造出新型的汽车悬架和传动装置,以及减震系统和可变阻力的锻炼器械。 其他类型的传感器可以与智能材料一起为许多应用领域制造出特定的系统。西尔基斯的研究中心正在设计一组能够测量酸度、张力等内容的传感器,它们可以在电线杆超过使用年限时间时通知检验员。 不属于智能材料的制成品的一项是()。

A. 飞机尾翼可以自由弯曲
B. 电线杆快要断裂时可以自动报警
C. 空调机可以减震
D. 人工肌肉可以带动人的四肢

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