As a newcomer, the first book of "Science and Technology Datang" can receive a short contract when it is about 20,000 words, and because of my own reasons, it was officially signed when it was updated to 50,000 words, which is inseparable from the great support of readers.

In order to facilitate everyone's communication, I have established a book friend group 259250864, and I invite you to join. The first one to join is the administrator by default!