有理数的加法1、同号相加(-2)+(-3)=-5例题：2、异号相加2+(-3)=-1180+(-10)=3+(-2)=1(-10)+(-1)=4+(-4)=0试讲稿《有理数的加法》试讲稿开场白：尊敬的各位评委老师大家上午好，我是面试初中数学...

Unit 1 lelevision Lesson 2 An Interview on 1V.(listening)vocabularyJame --TParning ChineseG:☆☆Redson:He is interested inpronunciationChinese culturec2☆☆☆grammarLearning Experi...