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Alexander Graham Bel ________ the telephone in 1876.A. foundB. discoveredC. inventedD. saw

题目
Alexander Graham Bel ________ the telephone in 1876.

A. found

B. discovered

C. invented

D. saw


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更多“Alexander Graham Bel ________ the telephone in 1876. ”相关问题
  • 第1题:

    10、BookStore数据库中有客户表Customer(CustomerCode, Name, Sex, Hometown, Email, Telephone, LoginDate, Password) 查询Customer表中所有客户的信息,SQL语句: SELECT ________ FROM Customer

    A.*#B.CustomerCode, Name, Hometown, Sex, Email, Telephone, LoginTime, PassWord#C.CustomerCode, Hometown, Telephone, Name, Sex, Email, LoginTime, PassWord#D.CustomerCode ~ PassWord
    LEFT(Name,1)= '刘' OR LEFT(Name,1)= '杨';Name LIKE '刘%' OR Name LIKE '杨%';Name LIKE '[刘,杨]%'

  • 第2题:

    BookStore数据库中有客户表Customer(CustomerCode, Name, Sex, Hometown, Email, Telephone, LoginDate, Password) 查询Customer表中所有客户的信息,要求显示CustomerCode、Name、Hometown和Telephone字段信息。SQL语句: SELECT _________ FROM Customer

    A.*

    B.ALL

    C.CustomerCode、Name、Hometown、Telephone

    D.CustomerCode,Name,Hometown,Telephone


    D

  • 第3题:

    BookStore数据库中有客户表Customer(CustomerCode, Name, Sex, Hometown, Email, Telephone, LoginDate, Password) 查询Customer表中所有客户的信息,SQL语句: SELECT ________ FROM Customer

    A.*#B.CustomerCode, Name, Hometown, Sex, Email, Telephone, LoginTime, PassWord#C.CustomerCode, Hometown, Telephone, Name, Sex, Email, LoginTime, PassWord#D.CustomerCode ~ PassWord
    *;CustomerCode,Name,Hometown,Sex,Email,Telephone,LoginTime,PassWord;CustomerCode,Hometown,Telephone,Name,Sex,Email,LoginTime,PassWord

  • 第4题:

    在证据理论推理中,已知样本空间中某个非空子集A的信任函数Bel(A)与似然函数Pl(A),那么该非空子集A对应命题的信任区间是(Pl(A),Bel(A))


    ρ(x,y)显然满足非负性与对称性。当ρ(x,y)=0时, ρ(x,y,)≤ρ(x,z)+ρ(y,z) 成立。 当ρ(x,y)=1时,对任何z∈x,式x≠z与y≠z中至少有一个成立, 从而 ρ(x,y)≤ρ(x,z)+ρ(y,z) 成立,所以三角不等式成立。 综上知,X是距离空间。

  • 第5题:

    20、在证据理论推理中,已知样本空间中某个非空子集A的信任函数Bel(A)与似然函数Pl(A),那么该非空子集A对应命题的信任区间是(Pl(A),Bel(A))


    错误

  • 第6题:

    【多选题】BookStore数据库中有客户表Customer(CustomerCode, Name, Sex, Hometown, Email, Telephone, LoginDate, Password) 查询Customer表中所有客户的信息,SQL语句: SELECT ________ FROM Customer

    A.*#B.CustomerCode, Name, Hometown, Sex, Email, Telephone, LoginTime, PassWord#C.CustomerCode, Hometown, Telephone, Name, Sex, Email, LoginTime, PassWord#D.CustomerCode ~ PassWord
    INSERT INTO Publisher VALUES(‘66’,’群众出版社‘,’0321-76584391’)