甘肃电信掌上营业厅:what does abcdefghijkmnopqrstuvwxyz mean

What does ABC mean? what does abcdefghijkmnopqrstuvwxyz mean What does ABS mean ? what does preppy mean? What does this mean? What does JIST mean? what does hmph mean? what does ghg mean? what does novel mean? what does it mean?