The sun produces more than enough energy for human activities, but we still can't capture enough of it. While solar panels (太阳能电池板) have made big advances in recent years, becoming cheaper and more efficient, they just provide electricity, not storable liquid fuels, which are still in...
句意:太阳能产生的污染很小,而且永远不会用完。 考查动词短语辨析。put out扑灭;give out分发;run out用完;take out拿出。根据“Energy from the sun produces little pollution and it will never…”可知,太阳能永远不会用完,此处应用短语run out“用完”。故选C。反馈 收藏 ...
The sun produces more than enough energy for human activities, but we still can't capture enough of it. While solar panels (太阳能电池板) have made big advances in recent years, becoming cheaper and more efficient, they just provide electricity, not storable liquid fuels, which are still in...
解析 C。解析:文章中提到“The advantages of solar energy are numerous. It is clean and does not produce any harmful emissions. Solar power is also abundant and free.”,即太阳能的优点很多。它是清洁的,不会产生任何有害排放。太阳能也很丰富且免费。
What single energy source do most energy alternatives depend on, either directly or indirectly? How is energy transferred from the sun to the Earth? What type of radiation does the sun produce? What produces all light energy? Which alternative energy source is exhaustible?
16. W Sun, P Hu, Z Chen, L Jia. Performance of cryogenic thermoelectric generators in LNG cold energy utilization, Energy Conversion and Management, 2005;46:789–796. 17. RL Cornelissen, GG Hirs. Exergy analysis of cryogenic air separation, Energy Conversion and Management, 1998;39(16–18...
It produces poem-worthy sunsets and as much energy as 1 trillion megaton bombs every second [source: Boston Globe]. Despite its magnificence and power, our sun is just a plain old average star by universal standards. It’s really proximity that makes the sun so special to Earth (along ...
If the process is random, the system produces information at the maximum rate, producing the maximum conditional entropy. If, on the contrary, the process is completely predictable, the system does not produce new information, and conditional entropy is zero. When the process is stationary, the ...
Liang, P.; Sun, Y.; Li, W. Service-oriented manufacturing information system: Concept, architecture and focus of future research. In Proceedings of the 2015 12th International Conference on Service Systems and Service Management (ICSSSM), Guangzhou, China, 22–24 June 2015; pp. 1–6. [Googl...
The sun is a yellow dwarf star which is very massive, hot and ancient. It is an area of great nuclear activity and it produces multiple types of radiation. By learning about different aspects of the Earth's primary source of both light and heat, we can g