整个句子的谓语动词是is,所以空格处是非谓语动词,carbon dioxide与produce之间是被动关系,故用过去分词,这里不强调produce发生的动作的时间的先后,故选D。考点:考查非谓语动词的用法。点评:本题难度适中。不容置疑,高考将继续加强对非谓语动词的考查,试题的特征将继续呈现出“情景化”和“设问角度的多样化”的趋势,但...
根据第四段内容Other methods for turningCO2 into formic acid require many purification processes.Such methods are very costly and require a lot of energy.The research team said it was able to reduce the number of steps used in the traditional process to create a low-cost,energy-saving method....
These gases, ___carbon dioxide (CO2), are ___by burning fuels such as petrol. The Greenhouse Effect may cause the level of the sea to rise and drown cities and even whole countries. The writers tell us that 'ozone is a gas which occurs 20-50 kmabove the gr...
Answer to: Carbon dioxide ___. a. is a greenhouse gas b. is released by burning fossil fuels c. has increased in the atmosphere since...
Scientists expected that as atmospheric CO2 increased more and more of the carbon dioxide would beabsorbed into the ocean affecting the chemical balance of the sea water with a potentially harmful impacton shellfish and coral in particular. "As carbon dioxide dissolves (溶解) in the water or ...
Day 3Is carbon dioxide (CO2) really making Earth w 1 ? Is climate change(气候变化)really caused by human a2_? Some people argue that it's a myth (谣传). But this year's Nobel Prize in physics shows it's not.Japan-born Syukuro Manabe was the first person to find the connection(关...
根据第一段中的CO2 levels in the atmosphere grew at a record-high speed in 2013,and the planet's natural ability to take in carbon may be slowing down.That's what the World Meteorological Organization (WMO),a UN body,said in a recent report.(大气中的二氧化碳含量在2013年以创纪录的速度...
充足的实物证据表明,二氧化碳(CO2)是最重要的单一 翻译结果2复制译文编辑译文朗读译文返回顶部 丰富物质的证据显示那二氧化碳 ( CO2 ) 是最最重要 翻译结果3复制译文编辑译文朗读译文返回顶部 有足够的物理证据显示二氧化碳 (CO2) 是最重要的单 翻译结果4复制译文编辑译文朗读译文返回顶部 ...
agenset genset [translate] aDrop everything now meet me in the pouring rain take away the pain 下落一切现在遇见我在倾吐的雨中拿走痛苦 [translate] aCarbon dioxide (CO2) is responsible for the largest part of the 二氧化碳(二氧化碳)负责对最大的部分的 [translate] ...
Why Is Carbon Dioxide Used In Cold Drinks? There are many reasons why carbon dioxide is the top choice as an additive in cold beverages. Let’s take a look at a few of them: Solubility Carbon dioxide is highly soluble in water, making it the most soluble of the common, non-toxic gase...