Metal is a common material in engineering. Which of the following is not a metal? A. iron B. aluminum C. glass D. copper 相关知识点: 试题来源: 解析 C。本题考查材料科学中金属的概念。铁(iron)、铝(aluminum)和铜(copper)都是常见的金属。而玻璃(glass)是一种非金属材料,主要由硅酸盐等组成。
Which statement is correct? A. The metal ornament is lighter B. The glass vase is lighter C. They have the same weight 相关知识点: 试题来源: 解析 C。本题考查“as...as”的用法,表示“和……一样”,题干中说金属饰品和玻璃花瓶一样重。反馈 收藏 ...
.Semiconductor fabrication facilities, or “wafer fabs,” take years to build and cost billions of dollars. From the decision to add a new fab, it takes even the most efficient manufacturers more than three years to build the clean room, install equipment, and ramp up production to a high ...
Metal credit cards don’t cut up or shred the same way as plastic credit cards. If you put a metal card in a shredder, it could damage the shredder. And a regular pair of kitchen scissors won’t work, either. See if you're pre-approved With no harm to your credit score1 Check...
To determine whether the element with atomic number 16 is a metal or a non-metal, we can follow these steps: Step 1: Identify the ElementThe atomic number 16 corresponds to the element sulfur (S). Step 2: Determine the Electronic ConfigurationThe electronic configuration of sulfur can be wri...
A。此题考查演绎推理。因为金属导电,铜是金属,所以铜导电,A 选项 conducts 正确,B 选项 doesn't conduct 意思是不导电,不符合推理;C 选项 conduct 形式错误,主语 copper 是第三人称单数,要用 conducts;D 选项 don't conduct 形式错误且意思不符合推理。反馈...
A. Neon B. Hydrogen C. Argon D. Krypton 相关知识点: 试题来源: 解析 B。解析:Hydrogen(氢)是非金属元素,在自然界中以双原子分子H₂的形式存在。Neon(氖)、Argon(氩)和Krypton(氪)是稀有气体元素,它们是单原子分子。反馈 收藏
used in most of today's integrated circuits (ICs), also known aschipsormicrochips. CMOS transistors are based on metal-oxide semiconductor field-effect transistor (MOSFET) technology. It is called complementary because each element is made up of two transistors working together in a complementary ...
The present invention relates generally to devices having a layer containing these compounds and at least one organometallic compound has the formula III Formula I, or formula II,. [Formula 1] (In the formula, L is aryl -N- heterocyclic ligand and is selected from heteroaryl -N- heterocyclic...
The element zirconium is used in the production of many everyday objects, energy, and even jewelry! Read this lesson to find out how zirconium is...