1，我们的主题The develop of technology in China for the past 30 years ，过去的30年中国技术的发展是飞跃的，在电器方面，在交通工具方面，通讯工具方面都有了巨大的发展。第二张：海尔集团是世界白色家电第一品牌、中国最具价值品牌海尔创立於1984年，22年来持续稳定发展，产品从单一冰箱发展到拥有白色家电、黑色家电在内的96大门类15100多个规格的产品群，并出口到世界160多个国家和地区。第三张：首先来看的是电冰箱的发展，老式的冰箱体积小制作简单，原来的冰箱所有物品只能一个温度保存，造成食物腐烂现象严重，现在的冰箱在持久保鲜和清除异味方面都有了明显的改善。第四张：现在的冰箱多趋...
1, our theme The develop of technology in China for the past 30 years, the past 30 years, China is a leap in technology development, in electrical terms, in terms of transport and ...
1 our subject The develop of technology in China for The past 30 were The past 30 years China The development of technology is leap, in electrical appliances, in transportation, co...
my（既然是你的演讲，还是my好）subject is The develop of technology in China for the past 30 years 。as we know，the chines technologydevelopments are burning the wind，such as electrical equipme...
