One day in April 1996, Chairman
He stopped for a moment and called upon an official to bring mineral water.
He personally poured the mineral water into a glass and offered it to a lecturer.
He said that the lecturer would have a sore throat as she explained the features of the cavern for a long time and warmly called upon her to drink it.
He poured the mineral water into another glass and gave it to her, saying that she gave him a good explanation of the cavern.
The lecturer was deeply impressed.
That day