解析 C 提示:that引导同位语从句,表示idea的具体内容,that在同位语从句中不作成分,但不能省略,也不能换用which。结果一 题目 【题目】We are familiar with the idea_all matter consists of atoms.A.whatB.whichC.thatD.when 答案 【解析】C提示:that引导同位语从句,表示idea的具体
All matter consists of atoms, which, in turn, consist of protons, neutrons and electrons. Both protons and neutrons are located in the nucleus, which is at the center of an atom. Protons are positively charged particles, while neutrons are neutrally charged. Electrons are negatively charged, a...
What does an atom consist of?Bonding:Bonding occurs between atoms. There are two types of bonding - in covalent bonding both atoms make use of the same electrons (two per bond), and in ionic bonding one atom steals electrons from another, creating positive and negative ions which are ...
百度试题 结果1 题目27. As we all know, nomatter what matter it is, it consists of atoms or molecules. 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
Figure 1 shows the molecules of a substance in three states of matter: solid, liquid and gas. The illustration implies that the molecules are composed of a diatomicelementin which each molecule consists of two atoms of the same element, such as hydrogen (H2), nitrogen (N2), oxygen (O2) ...
What is an organic compound that consists of a chain of carbon atoms with an acidic carboxyl group at one end called? Living organisms are made of organic and inorganic substances. How can each of these substances be classified based on the complexity of t...
There are already some examples. In January 2018, a joint China-Austria team showed thatcommunication between continents with quantum encryptionwas possible. The latest breakthrough achieved by this group consists of combining quantum communication from the Micius satellite with the fiber-optic network ...
The three-dimensional structure of a protein determined from NMR data consists of an ensemble (bundle) of different conformers that equally satisfy the experimental restraints. The precision of the bundle is described quantitatively by the root mean square deviation (RMSD) of the atomic coordinates....
interconnected system. Such a system consists of hundreds of thousands of computing cores or computers. In addition to the CPU (Central Processing Unit) components intended for general computing tasks, these also use GPU (Graphical Processing Unit) components or other accelerators that reduce the powe...
In fact, in most quantum computer architectures, the hardware primarily consists of cooling systems that keep the processor at extremely low temperatures. For example, IBM has used a refrigerator to cool a quantum system down to minus 459 degrees Fahrenheit. ...