What to call it, collection of encyclopedia 。。。。

There is no such name in textbooks at present, nor is it called when the set was first introduced.

As for whether the unity is called the mother set or the parent set, it depends on the unity of the international conformity association. It's not one person who has the final say.

Adopt it! Clear enough.

The set symbol represents the intersection and serves to find the common elements of the two sets.

The set symbol u represents the union, which is used to find all the elements contained in two sets. (contains common and non-common elements).

No, there are only two sets, the complement and the remainder.

Song Mouse, V Qin, Xiao Song, and Mr. Xu should be like this, I am not V Qinha, but I know.

I like to call Xiao V the most, because Xiao V said that his friends around him call him that, and even Xiao V's mother calls him that. But Xiao V also said that Brother Song or something, he likes it a lot, hehe.

It's called a "bar", and it's used for conditions or explanations.

In different countries, the term "investment**" is different. In the UK and Hong Kong, this is called "unit trust investment**"; The United States calls it "Common**, Japan and Taiwan."

It is called an "investment trust".

There is not much difference in the connotation and operation of these different titles.

Investment refers to an investment tool that is managed by the manager and managed by the custodian, and invested in the form of an asset portfolio, and the share holder enjoys the benefits and bears the risks according to the shares it holds.

United States: Common**; UK & Hong Kong SAR: Unit Trusts**; Some countries in Europe: pooled investment** or pooled investment schemes; Japan and Taiwan: Investment Trusts.

At present, China does not levy taxes on all ** and ** investments, and there are taxes abroad. Free account opening consultation.

At present, China does not impose taxes on all ** and ** investments. There are taxes abroad.

Countries and regions around the world have different names for investment.

1. **Investment** is called "Common**" (Mumal Fund) in the United States 2. It is called "Unit Trust**" (Unit Trust) in the United Kingdom and Hong Kong Special Administrative Region of China

3. In some European countries, it is called "collective investment**" or "collective investment scheme".

4. In Japan and Taiwan, it is called "**Investment Trust**" (Securities Investment Trust Fund).