: Level 0Domain rule: Level 0Time rule: Level 0Assignable Grade: 1"Alright, the rest is up to you to figure out." Yao Guang's voice was laced with fatigue. Then, before Lu Cheng could speak, he vanish...Ten hours ago.

"Dad, what are we going to do!" Liu Jun was a little anxious.

Today, Liu Jia's informant at the Department of Law Enforcement told Liu Tianming that there would be a special operation targeting Liu Jun tonight.

When Liu Tianming heard the news, he was completely dumbfounded.

This is a crucial informant, the information can't be wrong.

But how could that beookThat's it.Looking back at the history of technological development.From the Qin and Han dynasties, from "The Nine Chapters on Mathematical Arts" to "Qi Min Yao Shu" and then to "Shui Jing Zhu".Duri...