Water is oxygen and hydrogen . _ 相关知识点: 试题来源: 解析 【解析】be made up of 由……. 组成,根据句意用一般现在时的被动语态。故答案是 made up of 在英语表达中,“由…… 组成” 常见表达为 “be made up of”。此句描述的是一般性事实,需用一般现在时。又因为水是 “被” 氧气和氢气...
解析 【答案】oxygen【核心短语/词汇】oxygen:氧【翻译】水是由氢和氧组成的。【解析】be made up of:由……组成。句意:水是由氢和___组成的。根据常识,水是由氢和氧两种元素组成的。氧:oxygen,是不可数名词,不用变形,故答案为:oxygen。 反馈
What is hydrogen? Hydrogen is a clean alternative to methane, also known as natural gas. It's the most abundant chemical element, estimated to contribute 75% of the mass of the universe.Here on earth, vast numbers of hydrogen atoms are contained in water, plants, animals and, of course,...
Its centre forms molecular hydrogen (H2) that should serve mainly as energy carrier and fuel. However, currently and foreseeable in the future H2 is playing its main role as reactant in the chemical industry. Electrolytic generation and storage of H2 gas is energy demanding and may hardly ...
process called electrolysis, wherein electricity from renewable sources is used to split the hydrogen molecules from the oxygen molecules in water. Because the electricity used here comes from renewable sources, there are no greenhouse gas emissions. Renewable hydrogen is also known as green hydrogen....
Water is said to ___ oxygen and hydrogen.A: make up ofB: make ofC: consist ofD: be consisted of 答案 C正确率: 57%, 易错项: D翻译水是由氧气和氢气组成的。相关推荐 1 Water is said to___oxygen and hydrogen.( )A. make up ofB. make ofC.consist ofD. be consisted of 2Water is...
句子的主语是"Water",需要选择合适的动词短语来连接后面的成分"oxygen and hydrogen"。**选项分析:**1. **A. be consisted of**:错误。"consist"是不及物动词,不能用于被动语态,因此"be consisted of"属于语法错误。2. **B. consisting of**:错误。句子结构需要不定式(to + 动词原形),而"consisting of...
Water is ___ hydrogen and oxygen.Water is ___ hydrogen and oxygen. A. composed of B. consisted of C. made of D. made from 答案: A©2022 Baidu |由 百度智能云 提供计算服务 | 使用百度前必读 | 文库协议 | 网站地图 | 百度营销 ...
Water is hydrogen (氢气)and oxygen.Water is hydrogen (氢气)and oxygen. A. made up B. made of C. made from D. made up of 答案: D©2022 Baidu |由 百度智能云 提供计算服务 | 使用百度前必读 | 文库协议 | 网站地图 | 百度营销
The most common peroxide is hydrogen peroxide (H2O2), colloquially known simply as "peroxide". It is marketed as solutions in water at various concentrations.