Director's growth history

"It's... I. 【 】" The old man trembled a little as he spoke.

"Master Song, don't worry, you haven't made any mistakes, and the school hasn't lost anything. I just ask you to come up and ask you something."

"Leader, please tell me. I will tell you everything I know." The old man was not sure, seeing Zhai Xinwen's appearance as a high-ranking official, he was very flustered.

"The night before yesterday, Principal Yao and Director Zhou also worked overtime at school, didn't they?"

"Yes, I saw the lights in the principal's office and office were always on. Later, Principal Yao and Director Zhou came down, and Principal Yao said they were going out for dinner."

"Master Song, do you still remember when Principal Yao came out?"

Lao Song rolled his eyes, thought carefully for a while, and suddenly said with a sudden realization: "I remembered, it was 7:00 in the evening, exactly 7:00."

"Master Song, why are you so sure?" Zhai Xinwen was calm, as if he was chatting.

"There is a small TV in the communication room, and the news broadcast has just started."

"Very good. Thank you, Master Song. Then I want to ask, have you seen where Principal Yao and Director Zhou have dinner?"

"I see, the two of them entered the Zuixian Building diagonally opposite the school."

"Did you see them when they came out?"

"This does not."

"Then when did they come back?"

"Director Zhou didn't come back, Principal Yao came back alone."

"Are you sure Director Zhou hasn't come back?"

"Yes. Principal Yao came back in a taxi. He came back alone."

"Then when did Principal Yao come back?"

"About before 8:8, or around 20:[-]."

"How did you know it was at this time?"

"I would listen to storytelling by Shan Tianfang at 8:00 every day, and it would end at 8:20 every day. After a while, Principal Yao came back."

"Okay, thank you Master Song. What you said is very important." Zhai Xinwen stood up, sent Lao Song out, watched him to the corner of the stairs, and waved at him.

Back on the sofa, Zhai Xinwen asked, "Director Kong, have you recorded everything with your voice recorder?"

"Recorded, Director Zhai."

"Director Wang, you have worked hard to take pictures! Have you recorded everything?"

"It's recorded."

"Okay, Principal Yao went to Zuixianlou for dinner with Director Zhou at 7:00, and came back at 8:7. It took a total of one and a half hours. We can deduce that two people will go to Zuixianlou, sit down, order pot stickers, about this The time should be between 5:10 and 2006. Then this photo was taken when Principal Yao and Director Zhou were about to finish their meal. What time is this time? Digital cameras often record the time. One is no exception, the time is at 5:21 on May 19, 48.