【正确答案】
C
【答案解析】[听力原文] Bitcoin is a digital currency used by terrorists and drug dealers, as well as major companies like Microsoft and Overstock.com. In other words, everyone from private individuals who order pizza to terrorists who order weapons. Bitcoin was a currency created in 2009 by a mysterious software developer. He calls himself Satoshi Nakamoto. No one has ever met him, and it is not clear if he is one person or several people. Bitcoin does not use printed money. It is digital only. The currency is created on computers by a community of people across the globe. Anyone can join that network, or group, according to Coindesk.com. This network processes transactions made with the digital currency. Bitcoius are stored in a 'digital wallet' over the Internet or on the user's computer. There is not an unlimited amount of bitcoins. Nakamoto set up rules to limit the currency to 21 million bitcoins. With bitcoins, there are no banks or fees. Users do not register with their real names. Merchandise can be bought without the user showing her or his identity. Bitcoins are not taxed or regulated anywhere in the world. Bitcoins have become the currency of choice for people online buying drugs or other illegal activities. For example, bitcoins are being used by ISIS terrorists to fund operations, according to Ghost Security Group. It is a counter-terrorism network that focuses on the Internet and social media. Morgan Wright is a cyber security expert and senior fellow at the Center for Digital Government, a national research and advisory institute on information technology policies. 'Terrorists need anonymity,' Wright told Fox News. 'Countries have gotten very good at tracking terror financing in the years since 9·11. Networks have looked for new ways to do it, and it appears they've found it in bitcoin.' Despite this dark side of the new currency, bitcoins have their supporters. More and more merchants are beginning to accept bitcoins. Some people buy bitcoins as an investment, hoping they'll increase in value. There are many online marketplaces that allow people to buy and sell bitcoins using different currencies. Coinbase, in San Francisco, runs the world's largest bitcoin exchange, and operates 2.8 million bitcoin wallets globally, according to Wired. You can also buy and sell bitcoins on Bitquick, Xapo, and CoinCorner, among other exchanges. It is possible to do complex financial trades with bitcoins, such as futures, options and swaps. The price of bitcoins on online exchanges has fluctuated widely, which has led to speculation in the digital currency. In 2009 and early 2010, bitcoins had 'no value at all,' said Wired. Then in late 2013, it reached a high of $1,216. As of now, the price of one bitcoin is about $434. What do we learn about bitcoin? 录音中说到比特币不使用印制货币的形式，只以电子货币的形式存在，C“它是一种电子货币而非印制货币”是该处录音信息的同义表述，故选C项。录音开头讲到比特币是一种电子货币，恐怖分子、毒贩、像微软和Overstock这样的大公司或者个人都可以使用，A项“比特币只用于非法活动”属于断章取义。比特币是一名神秘的软件开发者于2009年创造的，B项错在“由微软公司创造”。比特币并不是没有数量的限制，其创造者Nakamoto设定的限额是2100万比特币，因此D项“比特币可以无限制地制造”不正确。
【正确答案】
A
【答案解析】[听力原文] Why are bitcoins favored by terrorists according to Morgan Wright? 四个选项均有bitcoins，且都是关于比特币的优点，可以推测题目与比特币某方面的优点相关。录音提到网络安全专家Morgan Wright告诉Fox News恐怖分子需要匿名(anonymity)，但各国在追踪恐怖组织资金方面很有成效，恐怖组织需要寻找新的方法，而比特币就是他们找到的新方法，即“比特币是匿名使用的”是其受恐怖分子青睐的原因，故选A。原文提到人们在使用比特币交易时不需要提供身份信息，而且比特币不需要征税，也不受任何监管，因此B项“比特币的监管是所有货币中最好的”和C项“比特币的税率更低”都不正确。D项“使用比特币更为方便”虽然也是其一大优点，但Morgan Wright在讲到恐怖分子使用比特币时并未提及这一点。