单选题Where is the guest speaker from?A America.B UK.C China.

题目
单选题
Where is the guest speaker from?
A

America.

B

UK.

C

China.


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更多“单选题Where is the guest speaker from?A America.B UK.C China.”相关问题
  • 第1题:

    Which of the following is the primary purpose of impedance matched volume control?()

    • A、Maintains proper speaker phase
    • B、Protects the amplifier from damage
    • C、Protects the digital systems from damage
    • D、Amplifies the speaker signal

    正确答案:B

  • 第2题:

    单选题
    Which of the following is the primary purpose of impedance matched volume control?()
    A

    Maintains proper speaker phase

    B

    Protects the amplifier from damage

    C

    Protects the digital systems from damage

    D

    Amplifies the speaker signal


    正确答案: D
    解析: 暂无解析

  • 第3题:

    单选题
    下列SELECT语句语法正确的是()。
    A

    SELECT*FROM教师表WHERE性别=男

    B

    SELECT*FROM教师表WHERE性别=男

    C

    SELECT*FROM教师表WHERE性别=男

    D

    SELECT*FROM教师表WHERE性别=男


    正确答案: C
    解析: 暂无解析

  • 第4题:

    单选题
    Where did Jane’s family stay in the Scottish village?
    A

    In a guest-house.

    B

    One a camp-site

    C

    At a hotel


    正确答案: C
    解析:
    当被问及度假时所呆的地方时,Jane指出”It’s in a small village with a nice, friendly pub”,此处pub指“客栈,酒店”,对应选项A中的guest-house(宾馆,招待所)。

  • 第5题:

    单选题
    The House Speaker and the temporary President of the Senate are usually()
    A

    elected by the majority party

    B

    chosen from the majority and minority parties

    C

    members of the majority party

    D

    chosen freely from the Congressmen and Senators


    正确答案: D
    解析: 暂无解析

  • 第6题:

    问答题
    Practice 6  ● You are working for a large export company. The Export Company is going to arrange meetings of the clients in America, in Europe and in Asia. The CEO has asked you to write a letter to invite a guest speaker at a luncheon to be held by leaders in commerce, or specialists in a field of science.  ● It is necessary to include the information below in the letter:  ● Why are you writing to the guest speaker, say, Mr. Bush?  ● What event is going to be held?  ● When and where the event is going to be held?  ● What do you offer the guest speaker by way of compensation?  ● Write 200-250 words.

    正确答案: 【参考范文】
    February 12, 2006
    Dear Mr. Bush,
    I am very pleased to inform you that an event will take place this month in Shanghai. Perhaps you may have heard that we arrange meetings of our clients in America, in Europe, and in Asia regularly, where they will have a chance to listen to a talk held by leaders in commerce, or specialists in a field of science.
    With a good understanding of your vast experience in data processing and electronic communications, we are writing to invite you to be our guest speaker at a luncheon to be held in Shanghai on Feb.26. We will appreciate it very much if you could spare some time and give a talk of about one hour, and be kind enough to answer questions afterwards. It will be our great honor if you manage to come to the Hotel Continental at 11 a.m. to settle details of the program, or send us full particulars in writing ahead.
    Together with traveling expenses and two days’ accommodation in Shanghai, we will pay you a fee of $ 1,000. It is hardly necessary for us to add that such a meeting will help to bring the operations of the Export Company to the attention of a group of businessmen who are interested.
    It’s our sincere hope that you will be able to be present on this occasion. We are looking forward to hearing from you soon.
    Yours sincerely,
    Clement Hudson
    解析: 暂无解析

  • 第7题:

    单选题
    Where is the guest speaker from?
    A

    America.

    B

    UK.

    C

    China.


    正确答案: A
    解析:
    录音明确提到The guest speaker is Professor Smith from the United States and…。

  • 第8题:

    单选题
    查询出所有名字以’S’开始的员工()
    A

    select * from emp where ename in 'S%';

    B

    select * from emp where ename='S%';

    C

    select * from emp where ename like 'S%';

    D

    select * from emp where ename like 'S_';


    正确答案: D
    解析: 暂无解析

  • 第9题:

    单选题
    与“SELECT DISTINCT产品号FROM产品WHERE单价>=ALL(SELECT单价FROM产品WHERE SUBSTR(产品号1,1)=2)”等价的SQL命令是(  )。
    A

    SELECT DISTINCT产品号FROM产品WHERE单价>=(
    SELECT MAX(单价)FROM产品WHERE SUBSTR(产品号1,1)=2)

    B

    SELECT DISTINCT产品号FROM产品WHERE单价>=(
    SELECT MIN(单价)FROM产品WHERE SUBSTR(产品号1,1)=2)

    C

    SELECT DISTINCT产品号FROM产品WHERE单价>=ANY(
    SELECT单价FROM产品WHERE SUBSTR(产品号1,1)=2)

    D

    SELECT DISTINCT产品号FROM产品WHERE单价>=SOME(
    SELECT单价FROM产品WHERE SUBSTR(产品号1,1)=2)


    正确答案: B
    解析:
    ANY、ALL和SOME是量词,其中ANY和SOME是同义词,在进行比较运算时只要子查询中有一行能使结果为真,则结果就为真;而ALL则要求子查询中的所有行都使结果为真时,结果才为真。SUBSTR(<字符表达式>,<起始位置>[,<长度>])为取子串函数,从指定表达式值的指定起始位置取指定长度的子串作为函数值。DISTINCT语句用来去掉重复值。

  • 第10题:

    单选题
    下列SQL语句中,能够完成对查询结构排序的是()。
    A

    SELECT *FROM 学生 WHERE 专业=’软件’ ORDER BY 年龄

    B

    SELECT *FROM 学生表 WHERE 专业=‘软件’

    C

    SELECT *FROM 学生表 WHERE 专业=‘软件’ WHERE 专业= ‘软件AVG 年龄

    D

    SELECT *FROM 学生表 WHERE 专业=‘软件’ DISTINCT 年龄 11


    正确答案: D
    解析: 暂无解析

  • 第11题:

    单选题
    查询“学号char(10)”尾字符是"1"的错误命令是()。
    A

    SELECT*FROM学生WHERE学号LIKE’?1’

    B

    SELECT*FROM学生WHERE学号LIKE’%[1]’

    C

    SELECT*FROM学生WHERE学号LIKE’%1’

    D

    SELECT*FROM学生WHERE RIGHT(学号,1)=’1’


    正确答案: C
    解析: 暂无解析

  • 第12题:

    单选题
    A: Do you know where Mr. Brown is?
    A

    quality

    B

    Somewhere in the southern suburbs of the city.Speaker B violates the maxim of ________.

    C

    manner

    D

    relation


    正确答案: D
    解析:

  • 第13题:

    单选题
    查询student表中的所有非空email信息,以下语句正确的是()。
    A

    Select email from student where email !=null

    B

    Select email from student where email not is null

    C

    Select email from student where email <> null

    D

    Select email from student where email is not null


    正确答案: D
    解析: 暂无解析

  • 第14题:

    单选题
    有如下SQL语句:下列哪条命令与该SQL语句等价() SELECT姓名FROM学生表WHERE学号IN; (SELECT学号FROM成绩表WHERE成绩>90)
    A

    SELECT姓名FROM学生表WHEREEXISTS;(SELECT学号FROM成绩表WHERE成绩>90)

    B

    SELECT姓名FROM学生表WHEREEXISTS;(SELECT学号FROM成绩表WHERE学号=学生表.学号AND成绩>90)

    C

    SELECT姓名FROM学生表WHERE学号EXISTS;(SELECT学号FROM成绩表WHERE学号=学生表.学号AND成绩>90)

    D

    SELECT姓名FROM学生表WHERE学号=;(SELECT学号FROM成绩表WHERE成绩>90)


    正确答案: B
    解析: IN是包含运算,此处子查询中得到多个结果,记录不惟一,因此不用“=”运算符;EXISTS是谓词,用来检查在子查询中时候有结果返回。

  • 第15题:

    单选题
    根据客户表和订单表查询2011年没有签订任何订单的客户信息,错误的SQL语句是(  )。
    A


    SELECT*FROM客户WHERE客户号NOT IN
    SELECT客户号FROM订单WHERE YEAR(签订日期)=2011)

    B


    SELECT*FROM客户WHERE NOT EXIST
    SELECT*FROM订单WHERE客户号=客户.客户号AND YEAR(签订日期)=2011)

    C


    SELECT*FROM客户WHERE客户号!=ANY
    SELECT客户号FROM订单WHERE YEAR(签订日期)=2011)

    D


    SELECT*FROM客户WHERE客户号!=ALL
    SELECT客户号FROM订单WHERE YEAR(签订日期)=2011)


    正确答案: B
    解析:
    “SELECT客户号FROM订单WHERE YEAR(签订日期)=2011”子查询用于查询2011年签订过订单的客户号。客户号不在于查询结果范围的客户信息要输出。IN和NOT IN分别表示在、不在指定范围内。ANY、ALL也是与查询有关的量词,对于ANY,在进行比较时,只要子查询有一行能使结果为真,则结果为真,加上否定后,!=ANY表示不等于任何一个;而ALL则要求子查询的所有行都是结果为真时,结果才为真,ALL一般不和等于(不等于)连用。

  • 第16题:

    单选题
    According to the speaker, who are working in the industrial estates?
    A

    People from the suburbs.

    B

    People from other country towns.

    C

    Volunteers.

    D

    Local inhabitants.


    正确答案: A
    解析:
    推理判断题。录音中指出这些小镇拥有规模庞大的industrial estates(工业区),并且提到一位名叫Sandor的人的看法,“they built those factories to stop the local people going away”,即小镇修建工厂是为了防止当地人外流。从接下来的“if this is true, it certainly worked”,可知说话者认为这样做确实管用,即同意Sandor的观点。由此可知,在工业区工作的人应该是当地居民。因此选D。

  • 第17题:

    单选题
    查询出EMP表中COMM字段为空的记录()
    A

    select * from emp where comm='';

    B

    select * from emp where comm=null;

    C

    select * from emp where nvl(comm)=0;

    D

    select * from emp where comm is null;

    E

    select * from emp where nvl(comm,0)=0;


    正确答案: A
    解析: 暂无解析

  • 第18题:

    单选题
    “员工” 表的“姓名”字段中找出名字包含“玛丽”的人,下面哪条select语句正确:()
    A

    Select * from员工 where 姓名 =’_玛丽_’

    B

    Select * from员工 where 姓名 =’%玛丽_’

    C

    Select * from员工 where 姓名 like‘_玛丽%’

    D

    Select * from员工 where 姓名 like‘%玛丽%’


    正确答案: A
    解析: 暂无解析

  • 第19题:

    单选题
    Where did the speaker live for five years?
    A

    London.

    B

    Paris.

    C

    Singapore.

    D

    New York


    正确答案: B
    解析:
    事实细节的找寻和判断。根据题干中的关键信息five years,定位到录音首句提到的“For five years I lived in Singapore…”,可知说话者在新加坡生活了5年,因此选C。

  • 第20题:

    单选题
    与“SELECT * FROM歌手WHERE NOT(最后得分>9.000R最后得分<8.00)”等价的语句是(  )。
    A

    SELECT * FROM歌手WHERE最后得分BETWEEN 9.00 AND 8.00

    B

    SELECT * FROM歌手WHERE最后得分>=8.00 AND最后得分<=9.00

    C

    SELECT * FROM歌手WHERE最后得分>9.00 AND最后得分<8.00

    D

    SELECT * FROM歌手WHERE最后得分<=8.00 AND最后得分>=9.00


    正确答案: D
    解析:
    题干的SQL语句的含义是,从“歌手”表中查询最后得分在8和9之间的记录。A项,BETWEEN…AND表示在…和…之间,其中包含等于,即大于等于AND前面的数,小于等于AND后面的数,应该为“BETWEEN 8.00 AND 9.00”。

  • 第21题:

    单选题
    与“SELECT DISTINCT歌手号FROM歌手WHERE最后得分>=ALL(SELECT最后得分FROM歌手WHERE SUBSTR(歌手号1,1)=″2″)”等价的SQL语句是(  )。
    A

    SELECT DISTINCT歌手号FROM歌手WHERE最后得分>=(SELECT MAX(最后得分)FROM歌手WHERE SUBSTR(歌手号1,1)=″2″)

    B

    SELECT DISTINCT歌手号FROM歌手WHERE最后得分>=(SELECT MIN(最后得分)FROM歌手WHERE SUBSTR(歌手号1,1)=″2″)

    C

    SELECT DISTINCT歌手号FROM歌手WHERE最后得分>=ANY(SELECT最后得分FROM歌手WHERE SUBSTR(歌手号1,1)=″2″)

    D

    SELECT DISTINCT歌手号FROM歌手WHERE最后得分>=SOME(SELECT最后得分FROM歌手WHERE SUBSTR(歌手号,1,1)=″2″)


    正确答案: D
    解析:
    SUBSTR(<字符表达式>,<起始位置>[,<长度>])为取子串函数,从指定表达式值的指定起始位置取指定长度的子串作为函数值。本题的SQL语句的含义为,从表名为歌手的二维表中选出最后得分大于所有的歌手号的第一个字符为2的歌手的最后得分。

  • 第22题:

    问答题
    Practice 4  ● You are to meet a client from China next Wednesday.  ● Write a message to Miss Gordon, your secretary, telling her:  ● What are needed to entertain the guest;  ● To tidy up your office;  ● Where you would have dinner.  ● Write about 30—40 words.

    正确答案: 【参考范文】
    From: General Manager
    To: Secretary Miss Gordon
    There will an important client from China visiting our company next Wednesday. Prepare Havana cigars and some green tea for him. Tidy up my office before 9: 00 a.m. Please also arrange our dinner at the Grand Hotel in the downtown.
    解析: 暂无解析

  • 第23题:

    填空题
    What is the purpose of this letter?To ____ Dr. Johnson to be this year’s guest speaker at the symposium.

    正确答案: appoint
    解析:
    本题问的是写信的目的。根据文章第一段第一句的前半句“The Economics Department of National University is pleased to appoint you to be this year’s guest speaker at the university’s annual international symposium”可得出答案。

  • 第24题:

    单选题
    对由SELECT--FROM—WHERE—GROUP--ORDER组成的SQL语句,其在被DBMS处理时,各子句的执行次序为()
    A

    SELECT—FROM—GROUP—WHERE—ORDER

    B

    FROM--WHERE——GROUP——ORDER——SELECT

    C

    FROM——WHERE——GROUP——SELECT——ORDER

    D

    SELECT——FROM——WHERE——GROUP——ORDER


    正确答案: B
    解析: 暂无解析