The OR symbol has its roots in Boolean algebra, a field of mathematics concerned with the logical relationship between statements in anexpression. Each statement in the expression returns a truth value of either true or false -- 1 or 0, respectively. Boolean algebra is based on the works of ...
试题来源: 解析 答案见上【解析】根据题干,可知考查句型What's the meaning of...?...的意思是什么?固定句型。the meaning of……的意思。故选:C。【思路点拨】"symbol"是什么意思?【解题思路】熟悉动名词的用法,结合题意,给出答案。 反馈 收藏
The World Bank estimates it will cost about 2.5 billion a year—for the next 40 years-to help agriculture in developing countries adapt to climate change. Other estimates say costs could run as high as 14 billion a year. However, the FAO says, “Available financing mechanisms are ...
doi:10.1108/03684921111117906Bernard ScottSimon ShurvilleDBLPKybernetesSANTAELLA, L. 2003. What is a symbol. Semiotics, Evolution, Energy, and Development 3: 54-60.
is used to indicate that a name, logo, or phrase is being used as a trademark to identify and distinguish goods or services in commerce. it alerts the public that the mark is claimed as a proprietary symbol. what is the difference between a registered trademark symbol and an unregistered ...
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 it. ...
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。
相关知识点: 试题来源: 解析 about关于,of……的,表示所属关系,on关于,在……上面,for为了,表示目的,symbol后接of sth,表示象征;后接for sth.表示符号,记号,根据the chemical symbol...water可知,此处指的是"水的化学符号"。故选:D。反馈 收藏
What Does Logical OR Symbol Mean? The logical OR symbol is a conditional operator used between two different statements to test the validity of each statement. A true result is delivered only when one or both statements are true. Advertisements The logical OR operator is used in conditions ...
An image is a visual representation meant to depict objects, scenes, or ideas directly, while a symbol is a sign or object representing a concept, value, or idea indirectly.