HOC24
Lớp học
Môn học
Chủ đề / Chương
Bài học
showed filled joined helped
phân biệt cách đọc
1. Did you go to Phu Quoc Island by train.
2. Where did you put the key on?
3. I would like some cake.
4. In the forest have many trees.
Muốn kết bạn trong hoc24 thì làm kiểu gì ạ?
did she really say that i (that / remember / her / saying / don't)
Have you ever seen the latest Batman film?
like/ walk/ a/ Would/ have/ you/ show/ after/ musical/ the/ to
Sắp xếp câu này
Read the following passage and choose the best answer: Computing is now at the same stage as printing was when the first printing presses were used. Before printing presses were invented, only rich people like kings and dukes could afford to buy books. Often these people were unable to read and hadn’t enough time to learn. In any case, the books were so big that it was difficult for anyone to relax with a book as we do today. They wanted booked because they were expensive and there was something magical about them. Only a few people were able to write, and it took an extremely long time to write a book. Monks and other people who could write said ordinary people could not learn to read. The position with computers is very similar today. A few years ago, computers were very large and expensive. Business managers and rich people ordered them but they didn’t know how to use them. In many countries, however, the situation has now completely changed. Lots of people not only own microcomputer but also know how to use them.
Question:
1. Is the position with computers are similar now?
=>
=(a+b)3−3ab(a+b)VP=(a+b)3-3ab(a+b)
=a3+3a2b+3ab2+b3−3a2b−3ab2=a3+3a2b+3ab2+b3-3a2b-3ab2
=a3+b3=VT
Expert
Talk about an advertisment that you often see on TV
Các bn trả lời ngắn gọn nhất có thể giúp mk nhé