An erratic instrument was exhumed from an excavation of ancient epoch. It looked like a pipe but was embroidered exquisite pictures on it, and could still engender a euphonious sound. As nobody in the country can enunciate what it is, an archaeologist with special expertise skill was enlisted from abroad. 来源：考试大 Following the envoy, the expert came to the expedient huts encompassing the spot. During his expeditious esteeming, the expert was completely engrossed. He exclaimed: “This is an exotic flute which is the oldest extant one, and all others have been exterminated in ethic migrations.” Then he gave an exemplary play with the pipe, followed by extemporaneous expounding to its structure. Eventually, he extolled the importance of this discovery, showing exorbitant etiquette. 来源：考试大 The enrapturing local official held a banquette on the archaeologist’s exodus. However, the instrument’s value enticed the expert and entailed his greed. He emended his plan and wanted to encroach the flute. Thus he exerted his eloquence and equivocated: “Sorry I’ve made a mistake maybe. According to an excerpt from a book enacted by my teacher, this instrument is unworthy. Its value cannot emulate a common flute.”来源：考试大 The official was exasperated: “Nobody will endorse such nonsense excluding yourself. Your crime can be neither extenuated nor exempted. Expedite your steps and eschew us, foolish exponent.” The archaeologist was enervated and ran away as soon as possible.