下列产品的单价(元/㎡)哪一种最贵？( )

建设主管部门履行监督检查职责时，有权采取的措施中，下列哪条是错误的？( )A.可以要求被检查的注册建筑师提供...

单项选择题建设主管部门履行监督检查职责时，有权采取的措施中，下列哪条是错误的？( )

In ancient times wealth was measured and exchanged in t...

单项选择题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.
Which of the following statements about computerized monetary systems is NOT supported by the passage?（　　）

In ancient times wealth was measured and exchanged in t...

单项选择题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, coins once had real value currency because they ____.（