The mirror in the mortuary

There is a medical college, in order to educate the students with high quality. It is stipulated that one student should stay in the mortuary alone for one night during the final examination of each semester. Although this kind of examination seems inhumane, the school has insisted on it all the time
This time, it's the turn of May, who always claims to be very brave. In school, she always thinks she's bold, and she's a ghost story writer in many forums, such as maopu. She's happy to scare the netizens to death. She has long said that she won't take this kind of exam seriously, but when the school announced that it's her turn today, She was still in a cold sweat. She must have been alone in the dark mortuary all night
In the evening, may was taken to the mortuary. With a bang, the door was closed. The room was dark all at once, and nothing could be seen. May shrank in a corner of the room. When she thought that there were all dead people around, her scalp felt numb. After a while, the moonlight came in. By the moonlight, may found that there was a mirror on the wall of the mortuary, She began to sing in front of the mirror. She kept singing until dawn
The next day, the swollen voice of May was brought out, she said to everyone that nothing can't afford, it's just a small thing for herself. Everyone admired her very much. At this time, a classmate asked her how swollen voice? She said that she sang in the morgue in front of the mirror all night, and didn't sing until this morning. At this time, everyone's face changed, After a long pause, a classmate told her with a pale face
There is no mirror in the mortuary at all