2015年12月英语六级长篇阅读真题答案（网友版第一套）

英语自学网

　　
        　　C 46. Not only moving objects and people but all systems have momentum.
　　I 47. Changing the current energy system requires the systematic training of professionals and skilled labor.
　　E48. Changing a light bulb is easier than changing the fixture housing it.
　　K49. Efforts to accelerate the current energy transitions didn’t succeed as expected.
　　G 50. To change the light source is costly because you have to change the whole fixture.
　　A 51. Energy systems, like an aircraft carrier set in motion, have huge momentum.
　　G 52. The problem with lighting, if it arises, often doesn’t lie in light sources but in their applications.
　　J 53. The biggest obstacle to energy transition is that the present energy system is too expensive to replace.
　　D 54. The application of a technology can impact areas beyond itself.
　　B 55. Physical characteristics of moving objects help explain the dynamics of energy systems.
        　[b]