<正> During the course of one of his lecture trips,Mark Twain got to asmall town.Before having dinner he went to a barber shop to be shaved.“Are you a stranger?” asked the barber.“Yes,” Mark Twain answered.“This is the first time I’ve beenhere.”“You chose a better time to come”,the barber said,“Mark Twain isgoing to give a lecture this evening.Will you go?”