下列关于比特币的表述中，正确的有()。

A.有统一的比特币发行机构发行的虚拟货币，如比特币

A. Virtual currency issued by a unified Bitcoin issuing agency, such as Bitcoin

B.银行账户相关联的记账式货币，如微信钱包里的零钱

B. Currency of account linked to bank accounts, such as change in micro-mail wallets

C.没有发行机构的虚拟货币，如莱特币

C. Virtual currencies without issuers, such as Lightcoin

D.涉及游戏平台和网络社交平台，如“脸书币”

D. Related to games platforms and online social platforms, such as Facebook

A.比特币具有可追溯性和匿名性

A. Bitcoin's traceability and anonymity

B.比特币没有发行机构，发行量有限

B. Bitcoin has no issuer and has limited circulation

C.比特币是比特币发明者的资产和负债

C. Bitcoin is the asset and liability of the Bitcoin inventor

D.比特币具有去中心化、超主权的金融特征

D. Bitcoin has a decentralised, ultra-sovereign financial character

A.物联网

A. Material networking

B.比特币

B. Bitcoin

C.移动通信

C. Mobile communications

D.自动驾驶

D. Autopilot

A.理财业务

A. Financial management

B.保险业务

B. Insurance operations

C.基金业务

C. Fund operations

D.投资业务

Investment operations

A.币值波动剧烈

A. Severe currency fluctuations

B.交易容量有限

Limited trading capacity

C.相对于现有支付方式，比特币支付速度过慢

C. Bitcoin payments are too slow relative to the current mode of payment

D.相对于现有支付方式，比特币在成本上并无优势

Bitcoin has no cost advantage relative to the current mode of payment

A.币值波动剧烈

A. Severe currency fluctuations

B.交易容量有限

Limited trading capacity

C.相对于现有支付方式，比特币支付速度过慢

C. Bitcoin payments are too slow relative to the current mode of payment

D.相对于现有支付方式，比特币在成本上并无优势

Bitcoin has no cost advantage relative to the current mode of payment

A.利用加密勒索用户

A. Extortion of users using encryption

B.使用比特币支付赎金

B. Payment of ransom in Bitcoin

C.使用比特币支付赎金

C. Payment of ransom in Bitcoin

D.以上都是

D. That's all there is to it.

A.电子货币是虚拟货币的一种

A. Electronic currency as a virtual currency

B.虚拟货币只能用于网络上购买虚拟商品

B. Virtual currencies can only be used for online purchases of virtual goods

C.比特币可以与真实货币进行双向兑换

C. Bitcoin is available for two-way exchange with real currency

D.比特币是与银行账户相关联的记账式货币

D. Bitcoin is an account currency linked to a bank account

A.①②③

B.②③④

C.①③④

D.①②④

A.规则全透明

A. Transparency of rules

B.去中心化

B. Decentralization

C.不可追溯

C. Non-retroactivity

D.不可篡改

D. Non-frozen