解析 B。解析:文章中提到“The symbol for a battery is usually two parallel lines of different lengths.”,所以电池的符号是两条长度不同的平行线,A 选项两个平行圆不是电池符号,C 选项一个里面有个点的正方形不是,D 选项一个有一条线穿过的三角形也不是。
百度试题 结果1 题目(B)6. -What is the chemical symbol for copper(铜)?-It's “Cu”. A. record B. sign C. thought 相关知识点: 试题来源: 解析 答案见上 反馈 收藏
When you hook up wires to the terminals of a battery, charge can flow and a complete path called a circuit is formed. This flow of charge is called acurrent.The symbol for current is the letter I and the unit of measurement is called the ampere. The higher the current running through ...
B、A symbol is something other than itself. C、A symbol is something not only itself. D、A symbol is something similar to itself. 你可能感兴趣的试题 单项选择题 通风设计中,为了使室内产生的有害气体不渗出而污染相邻房间,应使车间处于负压状态。
So, we can say the symbol for absolute value is {eq}|x| {/eq}. Answer and Explanation:1 Properties of absolute value : {eq}\begin{align*} &1. |a| > 0 &\text{(Always) }\\ &2. |-a| = |a|\\ &3. |a| = a \Rightarrow a \geq 0\\ &4... Learn...
Symbol on top left I’ve never noticed this symbol. What does it mean? 2 years ago 249 1 Symbol? I wonder what the grey line symbol up i the right corner means? 2 years ago 262 3 What are those little red dots symbolize? Anything? 3 years ago 1637 1 3...
What is a symbol? A symbol is a usually something tangible or visible that represents something more abstract. Technically, a symbol is anything that communicates meaning visually. So a red octagonal metal sign means something to drivers, even if it doesn't have the actual word “STOP” on ...
What is the symbol for the element that is in group VIIIA(18)and period6? What is the symbol for the element that is in groupIB(11)and period4? What is the symbol for the element that is in group IIA(2)and period5?
百度试题 结果1 题目What does the symbol "="stand for?AthereforeBis equivalent toCis equal toDis not the same as 相关知识点: 试题来源: 解析 C 反馈 收藏
The chemical symbol for lead is Pb. When compared to the symbols for other elements, this may not make much sense at first, given that neither the...Become a member and unlock all Study Answers Start today. Try it now Create an account Ask a question Our experts can answer your ...