In ancient times wealth was measured and exchanged in things that could be touched：food, tools, and precious metals and stones. Then the barter system was replaced by coins, which still had real value since they were pieces of rare metal. Coins were followed by fiat money, paper notes that have value only because everyone agrees to accept them.
Today electronic monetary systems are gradually being introduced that will transform money into even less tangible forms, reducing it to a series of “bits and bytes”, or units of computerized information, going between machines at the speed of light. Already, electronic fund transfer allows money to be instantly sent and received by different banks, companies, and countries through computers and telecommunications devices.
According to the passage, which of the following was the earliest kind of exchange of wealth?（ ）
- A.bartered goods
- B.fiat money
- C.coin currency
- D.intangible forms
正确答案及解析
正确答案
解析
由文章第一段第一句可知，最早的财富交换形式是物物交换。
