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参考答案和解析
正确答案:C
更多“Teenagers should never give any strangers ______.A. their mobile phone numbers B. thei ”相关问题
  • 第1题:

    Review the definition of the phone_list view.CHEATE OR REPLACE ALGORITHM=MERGE DEFINER= ‘root‘@localhost‘ SQL SECURITY DEFINER VIEW ‘phone_list‘ AS SELECTe . id as id ‘e . first_name AS ‘first_name‘ ‘e . last_name AS ‘last_name‘ ‘coalesce ( ph1.phone_no, ‘ – ‘) AS ‘office_no‘ ‘coalesce (ph2 .phone_no, ‘ – ‘) AS ‘cell_no‘ FROM employees e LEFT JOIN employee_phone ph1 ON ph1.emp_id = e.id AND ph1.type = ‘office‘ LEFT JOIN employee_phone ph2 ON ph2 .emp_id = e.id AND ph2 .type = ‘mobile‘The tables employees and employee_phone are InnoDB tables;all columns are used in this view. The contents of the phone_list view are as follows: Mysql> select * from phone_list; 1 row in set (0.00 sec)Which method can you use to change the cell_no value to ‘555-8888‘ for John Doe?()

    A.INSERT INTO employee_phone (emp_id, phone_no, type) VALUES (1, ‘555-8888‘,‘mobile‘)

    B.UPDATE phone_list SET cell_name ‘555-8888‘ WHERE first_name= ‘John‘ and last_name= ‘Doe‘

    C.DELETE FROM phone_list WHERE first_name= ‘John‘ and last_name= ‘Doe‘; INSERT INTO phone_list (first_name, last_name, office_no, cell_no) VALUES (‘John‘ , ‘Doe‘ , ‘x1234‘ , ‘555-8888)

    D.UPDATE employee_phone SET phone_no= ‘555-8888‘ where emp_id=1


    参考答案:A

  • 第2题:

    对于序列numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],以下相关操作和对应输出正确的是哪一项?

    A.>>> numbers[0: 2] [1, 2, 3]

    B.>>> numbers[: -1] [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

    C.>>> numbers[-2:] [9, 10]

    D.>>> numbers[0::3] [1, 3, 5, 7, 9]


    >>> numbers[5: -1]

  • 第3题:

    对于序列numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],以下相关操作和对应输出正确的是哪一项?

    A.>>> numbers[0: 2] [1, 2, 3]

    B.>>> numbers[0: -1] [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

    C.>>> numbers[-2:] [9, 10]

    D.>>> numbers[0::3] [1, 3, 5, 7, 9]


    >>> numbers[5: -1]

  • 第4题:

    WhendoingcapacityplanningfortheVirtualI/OServer,whatisthemostimportantconsideration?()

    A.TheI/OworkloadneedsoftheclientLPARs

    B.TheprocessingrequirementsoftheclientLPARs

    C.ThememoryrequirementsoftheclientLPARs

    D.ThevirtualEthernetrequirementsbetweenclientLPARs


    参考答案:A

  • 第5题:

    对于序列numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],以下相关操作中哪一个得到的结果中包含数字6?

    A.>>> numbers[0: 5]

    B.>>> numbers[6]

    C.>>> numbers[5: -1]

    D.>>> numbers[-4: -1]


    >>> numbers[5: -1]

  • 第6题:

    13、对于序列numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10],以下相关操作中哪一个得到的结果中包含数字6?

    A.>>> numbers[0: 5]

    B.>>> numbers[6]

    C.>>> numbers[5: -1]

    D.>>> numbers[-4: -1]


    A