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| 标题 | 2014广安中考英语作文：Popular science and modern techology | ||||||||||||||||||||||||||
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出国留学网中考频道在考试后及时公布各科中考试题答案和中考作文及试卷专家点评。请广大考生家长关注，祝福广大考生在2013年中考中发挥出最佳水平，考出好成绩!同时祝愿决战2014中考的新初三学员能倍加努力，在2014年中考中也能取得优异的成绩。 Popular science and modern techology科普知识与现代技术 Thomas Edison Electric by the Americans invented by Thomas Edison. Edison purchased the patent, to try to improve the use of the filament. In 1879 he replaced by carbon filament light bulb made, the success of the maintenance of 13 hours. By 1880, he created the light bulb has been successfully carbonization Zhusi to maintain 1200 hours in the laboratory. Most of the incandescent lamp will consume 90 percent of energy into useless heat, only less than 10% of the energy will be light. In contrast, fluorescent lamps (Fluorescent lamp, fluorescent tubes, also known as) the efficiency is much higher, close to 40% of the heat generated by the same brightness of incandescent only one-sixth. So many places, especially the need for air-conditioning in the summer of shopping malls, the building will use fluorescent lighting to save electricity. 2013江苏中考语文试题汇总 2013山东中考语文试题汇总 2013四川中考语文试题汇总 2013江苏中考数学试题汇总 2013四川中考数学试题汇总 2013山东中考数学试题汇总 2013江苏中考英语试题汇总 2013山东中考英语试题汇总 2013四川中考英语试题汇总 2013福建中考英语试题汇总 2013江苏中考政治试题汇总 2013山东中考政治试题汇总 2013四川中考政治试题汇总 2013山东中考物理试题汇总 2013四川中考化学试题汇总 2013四川中考历史试题汇总 2013山东中考历史试题汇总 2013山东中考生物试题汇总 2013四川中考生物试题汇总 2013山东中考地理试题汇总 2013江苏中考地理试题汇总 2013江苏中考历史试题汇总 2013四川中考物理试题汇总 2013湖北中考政治试题汇总 中考历史试题 相关链接： 《 《 出国留学网中考频道
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