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资料说明：人的各种活动，都是由一定的动机所引起的。学生进行学习也总是为一定的学习动机所支配的。学习动机是直接推动学生进行学习的一种内部动力。它是一种学习的需要，这种需要是社会和教育对学生学习的客观要求在学生头脑里的反映；它表现为学习的意向、愿望或兴趣等形式，对学习起着推动作用。不同的社会和教育对学生的学习有不同的要求，因而反映在学生头脑中的对学习的需要也有不同。学生学习动机的性质与内容有社会性，在阶级社会往往打上阶级的烙印。比如，在封建社会，读书人常常为了追求高官厚禄而手不释卷......[详细] |
| 卖家：瞎折腾上传于2008-9-25 |
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资料说明：地图是最丰富、最形象的地理教材和工具，它把球形地表上的众多地理事物和现象用图形、文字、符号、数字和颜色绘在平面上。它所包含的知识内容，大大超越同样篇幅的文字记载量；它对地理事物的定性、定量、定位、定向等功能表现出较高的精确度；它展示了地理知识间的空间分布、联系和规律，也可说明地理事物的运动、发展和变化。这种地图语言最精炼，表达最直接，易于辨认、判读和理解。而其丰富的内涵，又为分析、综合、比较、判断等思考过程提供了有利的条件。如何掌握和运用地图，形成地图能力呢？这就需要树立空间概念，......[详细] |
| 卖家：瞎折腾上传于2008-9-25 |
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资料说明：Nearly all young men have a compass with which they delight inmeasuring the future. When their will is equal to the breadth of the angleat which they open it the world is theirs. But this phenomenon of the innerlife takes place only at a certain age. That age......[详细] |
| 卖家：北方人上传于2008-5-23 |
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资料说明：The three heads bent forward towards a common centre--the Baronagog with suppressed excitement, Tulliwuddle revived with curiosity and agleam of hope, Essington impressive and cool."I take it," he began, "that if Mr. Darius P. Maddison and his coveteddaug......[详细] |
| 卖家：北方人上传于2008-5-23 |
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资料说明：AAA 最佳等级 abs. abstract 摘要 a/c, A/C account 帐户、帐目 a/c, A/C account current 往来帐户、活期存款帐户 A&C addenda and corrigenda 补遗和勘误 Acc. acceptance or accepted 承兑 Accrd.Int accrued interest 应计利息 Acct. account 帐户、帐目 Acct. accountant 会计师、会计员 A......[详细] |
| 卖家：longtime上传于2008-5-15 |
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资料说明：阿狄森病(肾上腺皮质机能减退) Addison's disease
阿佛伽德罗常量 Avogadro constant
阿卡波糖 acarbose
阿拉伯糖操纵子 arabinose operon
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| 卖家：longtime上传于2008-5-15 |
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资料说明：All the balance of that night the ape-man swung rapidly through theupper and middle terraces of the forest. When the going was good there hepreferred the upper branches of the giant trees, for then his way was betterlighted by the moon; but so accustomed were......[详细] |
| 卖家：瞌睡虫上传于2008-5-5 |
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资料说明：1:2你要按以色列全会众的家室，宗族，人名的数目，计算所有的男丁。 Take ye the sum of all the congregation of the children of Israel, after their families, by the house of their fathers, with the number&......[详细] |
| 卖家：瞌睡虫上传于2008-5-5 |
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资料说明：People say: "One can't help one's thoughts." But one can. The controlof the thinking machine is perfectly possible. And since nothing whateverhappens to us outside our own brain; since nothing hurts us or gives uspleasure except within the brain, the supreme ......[详细] |
| 卖家：一阵风上传于2008-4-30 |
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资料说明：The stormy weather did not permit us to have at our command all thearrangements which we had contemplated the previous evening; to do sowould have detained us too long upon the earth. After the balloon and thecar were in equilibrium, we threw over 19 lbs. of ......[详细] |
| 卖家：一阵风上传于2008-4-30 |
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