classes:  lecturer. Machine room is not guaranteed, many machines are damaged, the students have to bring laptops, very extreme.  curriculum. Machine room is not guaranteed, many machines are damaged, the students have to bring laptops, very extreme.  facility. Machine room is not guaranteed, many machines are damaged, the students have to bring laptops, very extreme.  general. Machine room is not guaranteed, many machines are damaged, the students have to bring laptops, very extreme.