泌尿系统--介绍｜生理学｜生物学｜FuseSchool 泌尿系统又称肾脏系统，由肾脏、输尿管、膀胱和尿道所组成。你的肾脏是豆般状的器官，大小和滑鼠差不多。若要找到你的肾脏，把你的手放在你的下背部，並把它们推上去，直到你感觉到你的肋骨。你的肾脏就位于那里的肌肉层后面。你的血液每天都要流经肾脏400次,并过滤出废物。 在这个视频中了解更多! 访问我们的网站：www.fuseschool.org，在这里，我们所有的视频都按主题进行了精心的分类和安排。想了解我们还能提供什么，留言、点赞并与其他同学分享吧。你可以提问, 也可以回答问题，我们的老师也会为大家解惑。 这些视频可以用于翻转课堂模式，也可以作为复习辅助工具。 Instagram: https://www.instagram.com/fuseschool/ Facebook: https://www.facebook.com/fuseschool/ Twitter: https://twitter.com/fuseSchool 更深入的学习体验，请访问FuseSchool平台和应用：www.fuseschool.org。 向我们发送好友邀請：http://www.facebook.com/fuseschool 这是一个开放的教育资源。如果您想使用该视频，请联系我们：info@fuseschool.org。 点击这里查看更多视频：https://alugha.com/FuseSchool
Algebraic fractions are simply fractions with algebraic expressions either on the top, bottom or both. We treat them in the same way as we would numerical fractions. In this video we look at how to simplify algebraic fractions, and how to add and subtract them. VISIT us at www.fuseschool.org, wh
CREDITS Animation & Design: Peter van de Heuvel Narration: Lucy Billings Script: Lucy Billings The word polygon comes from Greek. Poly means “many” and Gon means “angles”. Polygon = many angles. Polygons are 2-dimensional shapes, that are made of straight lines, with all the sides joined up. VISIT
In algebra we have lots of different names for different things: expressions, equations, formulae and identities are all slightly different versions of similar things. Then within these, we have variables, constants, coefficients and exponents to describe the different parts. We also need to know wh
