【正确答案】 D

【答案解析】[听力原文]27-30 Cash has been the root of much social and economic evil. The emergence of electronic funds - transfer technology makes it possible to change the nature of money and to divorce it from evil. Eight percent of Americans regularly use credit cards. The development of a federal system to handle the country's 300 billion annual cash transactions in the United States electronically is within reach. The procedure for using electronic money commercially would be practically the same as it is with present - day credit - card transactions and hardly requires explaining. Well over 95 % of cash transactions are in commercial settings. The use of cash has diminished substantially since World War II. Some economists believe that cash in the United States will eventually be completely overtaken by checks and credit cards in coming years. 27. What has been the root of much social and economic evil?

A、 The use of cash has increased substantially since World War Ⅱ.
B、 The cash in the U.S. will eventually be completely overtaken by checks and credit cards in coming years.
C、 The cash in tile U.S. will not be completely overtaken.
D、 The procedure for using electronic money commercially would be different as it is with present- day credit card transactions.