【文题】阅读下面这则材料,根据要求写一篇作文。一个人去买碗,他懂得一些鉴别瓷器质量的方法,即用一个碗轻撞其他碗,发出清脆声音的碗肯定是质地好的。来到店里,他发现每一个碗发出的声音都不够清脆。最后,店员拿出价格高昂的工艺碗,结果他还是不甚满意。店员不解地问: [Topic] Read the following material, according to the requirements of writing an essay. A person to buy a bowl, he knows some of the methods to distinguish the quality of porcelain, that bowl gently knocked on other bowls, crisp sound of the bowl is certainly good texture. Came to the store, he found the sound of each bowl are not crisp enough. Finally, the clerk took out the expensive bowl of craft, the result he was not satisfied. Clerk puzzled to ask: