一、Renewable Energy Sources 托福听力原文： NARRATOR: Listen to part of a lecture in an environmental science class. FEMALE PROFESSOR: Now, there's growing interest these days in generating electricity from ...

While fossil fuels- coal,oil,gas- still generate roughly 85 percent of the world's energy supply,it'sclearer than ever that the future belongs to renewablesources such as wind and solar.The move to ...

3月14日，国家重大科技基础设施高能同步辐射光源（HEPS）直线加速器满能量出束，成功加速第一束电子束。HEPS由中科院高能所承担建设。 The linear accelerator of China's high-energy synchrotron radiation light source successfully accelerated its first electron beam ...

BEIJING, April 22 (Xinhua) -- Across the deserts in northwest China, where the sun blazes and the winds never relent, those forces that people once had to endure are now powering a new source of wealt ...