Is a decentralized, distributed and public digital ledger that is used to record transactions across many computers so that the record cannot be alterred retroactively without the alteration of all subsequent blocks and the collusion ?of the network().A.C

题目

Is a decentralized, distributed and public digital ledger that is used to record transactions across many computers so that the record cannot be alterred retroactively without the alteration of all subsequent blocks and the collusion ?of the network().

A.Cloud service

B.Blockchain

C.Internet of things

D.Artificial intellingence

相似考题

1.Theprocessquantizingthecontinuousvaluesintoabinaryscaleiscalled().A.digital-to-analogconversionB.digital-to-digitalconversionC.analog-to-digitalconversionD.analog-to-analogconversion

2.She __ the wet clothes on the grass to dry them in the sum.A、spreadB、scatteredC、dispersedD、distributed

3.()systems can identify individuals with a high degree of certainty.A.EncryptionB.BiometricC.Password AuthenticationD.Digital

4.［A］ distributed ［B］ awarded ［C］ handed ［D］ submitted

参考答案和解析
正确答案：B
更多“Is a decentralized, distributed and public digital ledger that is used to record transacti ”相关问题

  • 第1题：

    下列程序的输出结果是______。 include int CalcDigital(char*str) { if(str= =NULL)

    下列程序的输出结果是______。

    include＜iostream.h＞

    int CalcDigital(char*str)

    {

    if(str= =NULL)

    return 0;

    int num_of_digital=0;

    for(int i=0;str{i]!=0x0;i++)

    if(str[i]＜='9'&& str[i]＞='0')

    num_of_digital++;

    return num_of_digital;

    }

    void main( )

    {

    char a[]="Beijing20080lympic";

    cout＜＜CalcDigital(a)＜＜endl;

    }


    正确答案：4
    4 解析：分析本题可知函数功能为计算一个字符串中包含的数字个数。字符串中包含的数字有2008，故输出为4。

  • 第2题：

    In World War II,the Soviet government allocated important resources.

    A:nationalized
    B:commanded
    C:taxed
    D:distributed

    答案：D
    解析：
    本题考查的是对动词的认知。这句话的意思是：第二次世界大战期间，苏维埃政府配给重要资源。allocate的意思是分配、配给，例如：You must allocate the money carefully．你们必须谨慎地分配钱。本题的选项均为过去式。选项A nationalized是nationalize的过去式，意思是国有化。选项B commanded是command的过去式，意思是命令。选项C taxed是 tax的过去式，意思是收税。选项D distributed是distribute的过去式，意思是分发。allocate和 distribute意思最接近，所以选D。

  • 第3题：

    1digital为合法标识符


    a&b

  • 第4题：

    Place them so that air can freely _________around the back.

    A. circulate
    B. diffuse
    C. distribute
    D. disperse

    答案：A
    解析：
    考查词义辨析。句意：把它们放好，这样周围的空气就能够自由流通。circulate循环，流通；diffuse 扩散，传播；distribute 分配，散布；disperse 分散，消散。表示空气流通，应该用circulate。

  • 第5题：

    Local authorities have to learn to allocate resources efficiently.

    A: command
    B:tax
    C:nationalize
    D:distributed

    答案：D
    解析：
    本句话的意思是：“地方政府必须学会有效分配资源。”allocate：分配。command：命令，例如：He commanded his troops to attack．他命令部队发起进攻。tax：纳税、收税，例如：David was taxed 40% on his income．大卫缴纳40％的收入所得税。nationalize：国有化，例如：The Cabinet decided to nationalize the three British airlines．内阁决定把这三家英国航空公司收归国有。 distribute：分发，例如：Please distribute the examination papers round the class.请把考卷发给全班同学。

  • 第6题：

    美国制造业是主要的受益者。The underlined expression “受益者” is in English.

    A．receiver

    B．investor

    C．beneficiary

    D．ledger


    A. beneficiary

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