Tham khảo:

CHÚC EM HỌC TỐT NHÁ

Tham khảo:

CHÚC EM HỌC TỐT NHÁ

Tỉ số phần trăm của muối trong nước biển là:

2 : 40 . 100% = 5%

CHÚC EM HỌC TỐT NHÁ

Các cặp tia trùng nhau là: AB và AC; CA và CB

CHÚC EM HỌC TỐT NHA

Tham khảo:

In a rapidly changing technological world, human easily access to global knowledge through Internet. It brings people both advantages and disadvantages. First, it creates a wider environment for building new relationship. It cannot be denied that Internet supplies a wide range of social network and app for people to make more friends. Talking to each other or even seeing their face is popular in modern society and all you have to do is a smartphone connected to wi-fi or 3G. Therefore, the Internet saves our time, health and even money when not having to pay for a call. Second, Internet provides large piece of information and knowledge of all subjects. With a click or some searching, users have different source of document and helpful information. For instance, instead of reading newspaper, it is more comfortable to read and comment online not only news, essay but also books and other kind of writings. They are all uploaded on the Internet, user can download it for several purposes. Third, applying internet into all aspect of life is helpful in modern society. A good example is that instead of going to the office, officer can stay at home and control the work through a laptop. Many group and organization make appointments online and they even do a business by the internet.

CHÚC EM HỌC TỔT NHÉ

CHÚC EM HỌC TỐT NHÉ

Tham khảo:

CHÚC EM HỌC TỐT NHA

Tham khảo:

CHÚC EM HỌC TỐT NHA 

Tham khảo:

CHÚC EM HỌC TỐT NHÉ