問題詳情

第 44 至 47 題為題組        Bitcoin is an experimental, decentralized digital currency that enables instant payments to anyone, anywhere in the world. Bitcoin uses peer-to-peer technology to operate with no central authority; that is, managing transactions and issuing money are carried out collectively through the network.         Any transaction issued with Bitcoin cannot be reversed; it can only be refunded by the person receiving the funds. That means you should do business with people and organizations you know and trust, or who have an established reputation. Bitcoin can detect typos and usually won’t let you send money to an invalid address by mistake.         All Bitcoin transactions are stored publicly and permanently on the network, which means anyone can see the balance and transactions of any Bitcoin address. However, the identity of the user behind an address remains unknown until information is revealed during a purchase or in other circumstances.         The price of a bitcoin can unpredictably increase or decrease over a short period of time due to its young economy, novel nature, and sometimes illiquid markets. Consequently, keeping your savings with   Bitcoin is not recommended at this point. Bitcoin should be seen like a high risk asset, and you should never store money that you cannot afford to lose with Bitcoin. If you receive payments with Bitcoin, many service providers can convert them to your local currency.         Bitcoin is an experimental new currency that is in active development. Although it becomes less experimental as usage grows, you should keep in mind that Bitcoin is a new invention that is exploring ideas that have never been attempted before. As such, its future cannot be predicted by anyone. 

44. What is the purpose of this article?
(A) To introduce a new currency.
(B) To prove the value of a young economy.
(C) To explore ways to do online transactions.
(D) To explain how to build up a business network.

參考答案

答案：A
難度：適中0.439024
統計：A(18),B(6),C(9),D(5),E(0)

內容推薦

內容推薦