Со скольки и до скольки учатся в начальной школе, в средней школе, в инстетуте-колидже и в уневерситете в россии

1.Yes i have. Once i opened a file with virus, but antivirus system immediately deleted it.

2.Once one man asked me to send him some money, because i won something. But i understood that it was spam and didn't send him money

3. I use passwords to sing in the publics like Twitter. I have a lot of them

4. I recieve a lot of adverts and messages like " You won 1000 dollars, send message here!!"

5. I think it is safe, but not at all. You order one thing, but you can recieve another one or even don't receive

1.Yes i have. Once i opened a file with virus, but antivirus system immediately deleted it.

2.Once one man asked me to send him some money, because i won something. But i understood that it was spam and didn't send him money

3. I use passwords to sing in the publics like Twitter. I have a lot of them

4. I recieve a lot of adverts and messages like " You won 1000 dollars, send message here!!"

5. I think it is safe, but not at all. You order one thing, but you can recieve another one or even don't receive