教材

The paper, taking Pythagorean Theorem for example, analyzes the function, effect and the practice in the modern teaching.

分析了数学定理演变的原因及其对数学发展的作用，并以数学教材中典型的定理&勾股定理&为例，分析其在历史演化中的作用与影响，以及在现代中学里的教学。

You cross your fingers when you try to make something happen by wishing that it will happen.

特别声明：本栏目内容均从网络上收集，供仅参考试用，正式学习请到书店购买正版教材。

The ironic part is that the principal spent quite a bit of time talking about attitude but when he began, I saw some teachers take their cell phones out. Some slouched in their chairs and read magazines. Others hunched over their lesson books to prepare for class. Many others simply talked in hushed tones about everything under the sun except the meeting.

具有讽刺意味的是校长花不少的时间讲态度的问题，但他一开始讲，我就看到有些老师拿出手机，有的老师没精打彩地坐在椅子上看杂志，有的躬下身子在教材上备课，还有很多老师干脆交头接耳，话题海阔天空，除了不谈会议内容。

The new century, the world's power in the Chinese mind, the great dream of the renaissance of China and is willing to send the masters of the future,"China baby-friendly" is willing to make unremitting efforts, the science, advanced teaching methods of cultivating the flowers of the motherland, and to enlighten children wisdom, develop a comprehensive, high-quality teaching materials and teaching methods, and guide the creation of self-taught children a miracle, for the human children's education to make its own contribution.

新的世纪，全世界华人胸怀强国、复兴中华的伟大梦想，并寄愿于未来的主人翁，&华夏爱婴&愿以不懈的努力，用科学、先进的教育方法去培育祖国的花朵，启迪儿童的智慧，开发全面、优质的教材和教学方法，引导孩子创造自我成才奇迹，为人类儿童的教育事业做出自己的贡献。

The Aswan Dam helps to control the River Nile in Egypt.

阿斯旺水坝有助于控制埃及的尼罗河水。在这些教材中出现过。。。

Also, only about 10 of the 20 may have completed the Distance Learning Material required of them.

又或者，他们当中的只有10名学徒已经完成他们工作所要求的远程教育的教材。

Preface Acknowledgments About the Authors About the Cover Artist 1 Introduction 1.1 WHAT IS ENVIRONMENTAL SCIENCE?

本书是环境专业的教材，系统介绍了环境工程与科学的原理与方法。

The illumination used, so called soft x rays in the wavelength range of twenty to forty angstroms (an angstrom is one ten billionth of a meter), is also sufficiently penetrating to image intact biological cells in ma ny cases.

不过他们特殊的功能将可能补充那些用自然光和电子仪器所进行的观察。特别声明：本栏目内容均从网络上收集，供仅参考试用，正式学习请到书店购买正版教材。

Li Xiaoxiao, 19, a chemical applications major at Beijing University of Chemical Technology, was told by an upperclassman at orientation that particular textbooks would be needed for some courses.

李晓晓，19岁，就读于北京化工大学应用化学专业。在新生见面会上，一位高年级同学和他说，有些课程会需要几本很难买到的教材。

The San Francisco earthquake was one of the worst catastrophes of the century.

旧金山地震是世纪性的灾难之一。在这些教材中出现过。。。

The labia have now been sutured together almost completely.The drains and the Foley catheter come out at the top.

此刻阴唇已经几乎完全的缝在一起了，排除多余淤血体液的管子和Foley导管从顶端冒出来。

To get the business done, I suggest we split the difference in price.

为了做成这笔生意，我建议我们在价格上大家各让一半。