A. heat 意思是 “加热”,通常 “加热” 是一种操作方式,而这里问的不是如何对物质进行加热操作来制取氧气,所以 A 选项不符合题意。B. produce 意思是 “生产,制造”,结合后面的化学方程式可知,这里是在说通过这个化学反应来制造、产生氧气,B 选项符合题意。C. invent 意思是 “发明”,“发明” 一般是...
C How much heat can dancers produce? Can the heat energy be stored or used? The SWG3 Arts Center in Glasgow, Scotland used a system called Bodyheat, which can use body heat of the dancers as a source of energy.In the Arts center, there are some air collectors taking in the heat pr...
Why does the sun send out solar flares? Will the burn out? (And if so, when? And what will happen to Earth and its inhabitants when the sun dies?) Let's look at the parts of our nearest star, find out how it makes light and heat and explore its major features. Sun Facts Average...
how does the man say his proposal about retirement can be carried out? 【section c】 passage 1 音频原文 new research from america studies the role that the presence of individuals from different social or racial groups ...
Let's begin at the core of the process: How does sunlight, also known as electromagnetic radiation, become heat? Contents Cooking With Light The Benefits of Solar Cooking Cooking With Light Using stoves and ovens, we can cook foods like meat, vegetables, beans, rice, bre...
NASA's daredevil solar spacecraft survives 2nd close flyby of our sun Related:When will the sun die? Where does the sun's heat come from? The sun is made ofgas and plasma. Most of the gas — 92% — is hydrogen. If the sun were smaller, it would just be a huge ball of hydroge...
As a bonus, if you decide to move before you’ve paid for your solar system, most solar power installers will transfer the terms of your lease, loan or payment plan to the new homeowner. This lower limit does not apply when adding onto existing systems. Protect The Environment The enviro...
Does my house size affect how many panels I need? Although house size may be a factor in how many panels you need, a much more significant factor is your electricity use. You are likely to use more electricity if you have a bigger house, but that might not be the case if your family...
10. Why was Frank on the news last night?A. He got the boy out of water and saved him.B. He walked along the beach at night.C. He swam alone in the cold water.(B) 听对话,回答第11~12小题。(听两遍)11. Why does the woman e to the shop?A. Because there’s something wrong...
How does home solar power work? Basically, solar panels work by converting solar radiation into two forms: electrical energy and heat. This solar energy conversion is primarily done by solar panels, which consist of numerous solar cells. These cells use the photovoltaic effect to transform sunlight...