Molecules are made of atoms of one or more elements. Some molecules are made only by one type of atoms (two oxygen atoms bond together to form O2 molecule) while molecules like protein are made up of atoms from different elements.
答案:consist of.考查句型转换.句意:所有物体都是由分子和原子组成的.be made up of是固定短语"由…组成",consist of也是固定搭配"由…组成",两者是同义词,因为是一般现在时,所以答案是consist of.所有物体都是由分子和原子组成的.句型转换是将所给的句子换个说法.这一题型包含内容多,形式杂.有词汇的同义转换...
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Matters are made up of molecules, and molecules of atoms.(用高级短语替换are made up of)consist of2. Professor Smith, along with his assistants, are working on the project day and night to meet the demands.(改错)are 改成is3. She is in a poor of health, which worries her mother very...
百度试题 结果1 题目All bodies are made up of molecules(分子)and atoms.(同义句转换)All bodies ___ ___ molecules and atoms. 相关知识点: 试题来源: 解析 consist of 反馈 收藏
(a) Describe the arrangement, separation and motion of gas molecules.arrangementseparationmotion 相关知识点: 试题来源: 解析 (a) 描述气体分子的排列、分离和运动。 ### 排列 气体分子的排列是非常松散的,它们之间的距离相对较大,没有固定的位置,可以自由地在容器中移动。气体分子之间的相互作用力较弱,不足...
For many years, scientists couldn’t figure out how atoms and molecules combined to make living things. Plants, fish, dinosaurs, and people are made of atoms and molecules, but they are put together in a more complicated way than the molecules in the primitive ocean. What’s more, living ...
Molecules, by definition, are composed of two or more atoms. They can consist of atoms of the same element or different elements. For instance, oxygen gas (O₂) is a molecule composed of two oxygen atoms bonded together, while water (H₂O) is a molecule made up of two hydrogen atom...
. Bromine, like its neighbours chlorine and iodine in the periodic ( = of period ) table, has molecules made up of two atoms each. In these liquid elements, the molecules are close together, but not so crowded;they can pass lightly by one another.1.All elements are made up of ....
Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.