由原文第一段的Air is not jsut one gas. It is a mixture of different gases可知正确答案.故答案为C. (4).【答案】 A 【解析】 由原文第三段的If 1000 dots can represent the air, then 776 of them are nitrogen, 210 are oxygen, 11 are argon可知正确答案.故答案为A.反馈...
This type of language is often referred to as victim blaming, where the gaslighter will make statements that cause you to feel like you are the problem, even when you have fallen victim to something such as bullying or abuse and the situation is outside of your direct control.这种类型的语...
根据第一段第一行“Air is not just one gas,it is a mixture of different gases,空气不仅仅是一种气体,它是不同气体的一个混合 ”可知答案为C,空气是不同气体的一个混合;A项:空气只是一种气体;B项:空气是两或三种气体的混合,第二段第一句提到“空气中主要有四种气体”故B错误;D项:空气不存在。2、...
Argon purifier is widely used in metallurgy, chemical industry, electronics, medicine, food and other industries, which is one of the important equipment to ensure the quality and safety of production. The argon gas purification machine is a product manufactured by the combined technology of physical...
A. It will bear the signature of thirty-five industrialized nations who have committed to reducing their output of those gases to varying degrees. B. It is revised on the basis of Kyoto Treaty, which mainly deals with CO2 and greenhouse gas emission. C. Certain articles in the Kyoto Treaty...
… It is only in exceptional circumstances we might become aware of the complexity involved: if we are searching for a word but cannot remember it; … 【解析】circumstances∧→that。本题考查it is… that…的强调句型。原文强调,只有在特殊的情况下,人们才会意识...
How is the cause of gas and bloating diagnosed?Your healthcare provider will ask about what you eat and examine your abdomen. You may need any of the following tests:A blood test may show an underlying medical condition that may be causing your symptoms. A breath test may show a stomach ...
三句原则做题:Display and sales restrictions: California has a rule prohibitingalcohol displays near the cash registers in gas stations, and in most placesyou can’t buy alcohol at drive-through facilities。于是大部分地区你在驾车通过的设施里买不到酒啦 At supermarkets, food companies pay to have ...
A natural gas storage is a facility that can store natural gas for an indefinite period of time. Typically located underground, and used to store for later.
根据第一段第一行“Air is not just one gas,it is a mixture of different gases,空气不仅仅是一种气体,它是不同气体的一个混合 ”可知答案为C,空气是不同气体的一个混合;A项:空气只是一种气体;B项:空气是两或三种气体的混合,第二段第一句提到“空气中主要有四种气体”故B错误;D项:空气不存在。2、...