Soft copy refers to the manuscript before the invention of printing. Before the invention of printing, the spread of books could only be copied.
Jigsaw puzzles have been in the history of human society for about 235 years. Jigsaw puzzles can exercise children's logic and cognitive toys, and can also improve children's hands, brains, and heart abilities. For children, most children like puzzles Most of the pictures are based on cartoon characters, such as the princess, Winnie the Pooh, Mickey and so on.
First classify the puzzles according to color, right angles, and straight edges;
Inspire people to reason and think and improve hand-eye coordination.
"Workers must first sharpen their tools if they want to do well." I believe everyone is familiar with this sentence. In the work of modern life, sticky notes are the most important weapon. Post-it notes are office supplies that have the same status as writing pens in daily office work, and their importance is self-evident. So for companies, what kind of post-it notes can meet the daily needs of employees to the greatest extent?
What other uses are there for post-it notes in daily life? Generally speaking, post-it notes are mainly divided into three aspects: note taking, decontamination, and sealing.
