C114 Do You dare to Swear?

The middle-aged teacher's eyelids couldn't help but twitch. He looked up at Qin Yunyi, then lowered his head to look at the tablet. He said reluctantly, "Question 56: When did the first heartbeat of the human body start? The answer is that the embryo has developed to the third week. If the answer is correct, Changqing First High School will add one more point