1、简介健美操运动发展及锻炼价值; 2、学习大众健美操第二套一级组合一

11.1麦克斯韦电磁场理论的基本概念 一、位移电流 1、电流密度 垂直穿过单位面积的电流强度

一、光的偏振态 1、线偏振光振

13.1单缝夫琅和费衍射 一、光的衍射

Suggested answer All temptation is an attack that falls upon you anytime and from anywhere Temptation is also something that you crave for now but regret later Just as fire tries iron, temptation tries a Just man

Lead-in Questions 1. Are you iron deficient 2. How would you know? a. tired b. have reduced ability to exercise. C. have poor stamina d. get frequent infections e. are lethargic

一.选择题 1.金属的光电效应的红限依赖于 (A)入射光的频率(B)入射光的强度 (C)金属的逸出功(D)入射光的频率和金属的逸出功

Leading-in Activities: Discussion 1. What's your definition of money? 2. What attitude should we take toward money? 3.What’ your fantasy?

一、扦样的目的和原则 1、扦样(sampling)的目的—从一批大量的种子中扦取适当数量、有代表性、供分析检验用的样品

7-5磁通量磁场的高斯定理 一、磁感线 切线方向B的方向; 疏密程度—B的大小