百度文库 高校与高等教育 Carbohydrates are composed of carbon, hydrogen andCarbohydrates are composed of carbon, hydrogen and oxygen. A. 错误 B. 正确 答案: B©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 ...
US5731613 * 1995年8月9日 1998年3月24日 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device having a monocrystalline layer composed of carbon, oxygen, hydrogen and nitrogen atomsUS5731613 1995年8月9日 1998年3月24日 Semiconductor Energy Laboratory Co., Ltd. Semiconductor device having a...
Be composed of: 更正式,突出“成分的科学性或系统性”。 The compound is composed of carbon, hydrogen, and oxygen. 四、易错点与注意事项 避免逻辑矛盾: 整体与部分需合理对应。 ❌错误: The forest is composed of trees and animals.(动物不属于森林的“组成成分”) ...
百度试题 结果1 题目17 Hydrocarbons are composed of the elements(1)(1) carbon and hydrogen, only(2) carbon and oxygen, only(3) carbon, hydrogen, and oxygen(4) carbon, nitrogen, and oxygen 相关知识点: 试题来源: 解析 (1) 反馈 收藏 ...
The human body is made up of several elements; these include major molecules like oxygen, carbon, hydrogen and nitrogen which serve as building blocks for macromolecules, but there are also elements found in smaller quantities called "trace elements" that ...
Carbohydrates, proteins, and lipids serve many roles in the body including serving as a fuel source. Nucleic acids contain the genetic code for all protein synthesis in the body. Answer and Explanation: a) Carbohydrates are composed of carbon, hydrogen, and oxygen ar...
A. Iron and nickel B. Silicon and oxygen C. Magnesium and aluminum D. Carbon and hydrogen 相关知识点: 试题来源: 解析 A。解析:地球的核心主要由铁和镍组成。选项A符合地球科学中关于地球核心组成成分的事实。选项B硅和氧是地壳中较为常见的元素组合。选项C镁和铝不是地核的主要组成成分。选项D碳和...
Water is composed of hydrogen and oxygen. 水由氢与氧化合而成。《新英汉大辞典》 The committee was composed of professors and engineers. 委员会由教授和工程师组成。《新英汉大辞典》 Sedoheptulose is a ketose composed of seven carbon atoms. 景天庚酮糖是由七个碳原子构成的酮糖。 An analog si...
Water iscomposed ofhydrogen and oxygen. 水是由氢与氧化合而成的. 《现代英汉综合大词典》 A methane molecule iscomposed ofone carbon atom attached to four hydrogens. 甲烷分子由1个碳原子与4个氢原子构成。 柯林斯例句 Every substance, no matter what it is, iscomposed ofvery small particles called...
The ultimate chemical decomposition of compounds produces the elements from which they are made. The compound carbon monoxide(CO)is composed of carbon and oxygen in the ratio of one atom of carbon to one atom of oxygen.Hydrogen chloride(HCl)contains a ratio of one atom of hydrogen to one ato...