全文预览

新视野大学英语视听说教程第三册前三单元听力练习录音文本和答案(第二版)

上传者:徐小白 |  格式:pdf  |  页数:37 |  大小:7013KB

文档介绍
blue, purple or bronze, depending on the\rdirection it is viewed from.\rMore important for its value, though, is its rarity. Tanzanite has been found in only\rone small area, near Mount Kilimanjaro, in Tanzania. And its supply will probably be\rfully mined in the next two decades.\rAs one mining official puts it, “It should never have really occurred in the first place.\rIt did occur. And only this one deposit on this entire planet that is known...makes it\rmore than a thousand times rarer than diamonds. And certainly within the next 15 to\r20 years, there will be no more tanzanite to be mined.^^\rThe current value of the tanzanite market, at U.S. $10 billion, is equivalent to that of\rdiamonds. And so another saying "Diamonds are forever“ may lose some of its\rmeaning.

收藏

分享

举报
下载此文档