209.
"How did humans become extinct?" Jiang Yingbai tilted his head and asked curiously.
"The ultimate nuclear weapon, probably in 3019 AD."
Shen Chu's voice did not fluctuate, making Jiang Yingbai feel like she was listening to Baidu's mechanical commentary.
Jiang Yingbai thought about it carefully, and in her impression, it seemed that the power of the atomic bomb was not enough to exterminate the entire human race, "Can you be specific?" ”
"Do you know about the Tsar Bomba?"
"Go and Cut God Tonight" 209. I am hitting it in my hand, please wait a moment,
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