Click the Exhibit button and examine the data in the EMPLOYEES table.Which three subqueries work? ()A.SELECT * FROM employees where salary > (SELECT MIN(salary) FROM employees GROUP BY department_id);B.SELECT * FROM employees WHERE salary = (SELECT AVG(sa

题目
Click the Exhibit button and examine the data in the EMPLOYEES table.Which three subqueries work? ()

A.SELECT * FROM employees where salary > (SELECT MIN(salary) FROM employees GROUP BY department_id);

B.SELECT * FROM employees WHERE salary = (SELECT AVG(salary) FROM employees GROUP BY department_id);

C.SELECT distinct department_id FROM employees WHERE salary > ANY (SELECT AVG(salary) FROM employees GROUP BY department_id);

D.SELECT department_id FROM employees WHERE salary > ALL (SELECT AVG(salary) FROM employees GROUP BY department_id);

E.SELECT last_name FROM employees WHERE salary > ANY (SELECT MAX(salary) FROM employees GROUP BY department_id);

F.SELECT department_id FROM employees WHERE salary > ALL (SELECT AVG(salary) FROM employees GROUP BY AVG(SALARY));


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    10、Button控件的属性ClickMode可以获取Click事件,这里的Click模式有()

    A.经过

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    C.按下

    D.释放


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  • 第2题:

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  • 第3题:

    1. 创建并访问DataFrame对象。 1) 创建3×3DataFrame数据对象:数据内容为1-9;行索引为字符a,b,c;列索引为字符串‘one’,‘two’,‘three’; 2) 查询列索引为‘two’和‘three’两列数据; 3) 查询第0行、第2行、第0列、第2列数据; 4) 筛选第1列中值大于2的所有行数据,另存为data1对象; 5) 为data1添加一列数据,列索引为‘four’,值都为10; 6) 将data1所有值大于9的数据修改为8; 7) 删除data1中第0行和第1行数据。


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    Button控件的属性ClickMode可以获取Click事件,这里的Click模式有()

    A.释放

    B.按下

    C.经过

    D.悬停


    悬停;按下;释放

  • 第5题:

    当用户单击 Button控件时,将触发的事件是button_click


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  • 第6题:

    DataBind方法通常在哪个事件中调用?

    A.Page_Load事件

    B.Appalachian_Start事件

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    D.Label_Click事件


    DetailsView的ItemUpdated