He Si was sitting on a chair, a pair of slender legs wrapped in straight fabric, cold bloodless hands tapping on the keyboard, he had been staying up late last night, and the computer screen was full of bullshit papers at this time.

His phone rang, and the person on the other end of the phone seemed to be a little anxious, "Professor He, how is your thesis?" It's still waiting in the journal. ”

He Si hit one after another......

Chapter 688 of "The Past Is Invalidated" If you are hitting in your hand, please wait for a while,

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