青春的飞逝

我们的一切损失都会有所得益,我们的所有痛苦皆能给以安慰;可梦境般的青春一旦消逝,就把那心田的某些收藏带走,从此一去永不回头。成年的我们生活严峻,磨练得日益刚强,日趋完善;可依然感觉某种甜美的东西随着青春那脚步的飞逝,从此一去永不再来。美好的东西一旦消逝,我们为此枉     

浅谈材料力学实验教学

针对材料力学实验课教学中实验教师的备课,课堂指导,学生的实验管理,以及实验教师如何提高自身素质等问题进行了讨论,并提出一些有益的见解。     

Yee和Lan的爱情故事

为何一个人爱恋对方时会送戒指呢？这个凄美而浪漫的传说娓娓诉说了这“爱的光环”的由来。 Once upon a time,in a solar system that is so,so far away from here that you wouldn't believe me if I told you, were two planets. Their names were Yee and Lan,and they loved each other very much. Every time they saw each other they would whisper planet secrets,or share wisps of atmosphere, or tell silly jokes. But they were a little sad.because it was so long between times that they got to be near each other,what with orbital mechanics being what     

抓住教学要素,提升教学实效——新课标下高中数学课堂效率提高策略刍议

教师是教学活动的主导,学生是学习活动的主体,课堂是教与学有效衔接的联系点。课堂教学效能的有效提升,需要教师利用教学关键环节,实施有效教学活动,使学生学习能力和素养得到有效培养和锻炼,从而实现课堂教学效率的有效提升。     

知识的力量

以89岁的高龄,玛丽·法萨诺毕业了,拿到夜校的学士学位,成为历史上获得哈佛大学本科学位年龄最大的学生。下面这篇“知识的力量”是她在证书颁发典礼上的讲话:     

A PAIR OF SOCKS

One fine afternoon I was walking along Fifth Avenue,when I remembered that it was necessary to buy a pair of socks.Why I wished to buy only one pair is unimportant.I turned into the first sock shop that caught my eye, and a boy clerk who could not have been more than seventeen years old came forward. "What can I do for you,sir?" "I wish to buy a pair of socks."His eyes glowed.There was a note of passion in his voice. "Did you know that you had come into the finest place in the world to buy socks?"I had not been aware of that,as my entrance had been accidental. "Come with me,"said the boy,     

一双袜子

一个晴朗的下午，我沿第五大街而行，忽然想起需要买双袜子。为何我只想买一双，现在原因已无关紧要了。我拐进跃如入眼帘的第一家袜店，一个不到17岁的男售货员迎上来，说：“先生，您要买什么？”“我想买双短袜。”他双眸闪闪发光，声音饱含激情。“您知道您进的可是世上最好的袜店吗？”我倒并未意识到这点，我是偶然进来的。“随我来”，男孩欣喜若狂地说。我跟着他到了店的后部。     

具有Gompertz增长和标准发生率的嗜菌体感染细菌模型的分析

对具有标准发生率和Gompertz增长的嗜菌体感染裂解细菌模型进行分析．研究平衡点的局部稳定性及边界平衡点的全局稳定性,分析模型存在Hopf分支周期解,并进行matlab仿真．