【判断题】The ears forgive the noise because the noise realizes his fault. ( )
【单选题】有如下SQL语句: SELECT DISTINCT productName, price FROM product WHERE (price>(SELECT AVG(price) FROM product)) ORDER BY price DESC; 下面说法错误的是( )。
A.
"SELECT AVG(price) FROM product "是子查询
B.
"ORDER BY price DESC"是指按price从低到高顺序排列
D.
此查询显示的字段只有"productName"和"price"
【单选题】关于频率分布直方图中的有关数据,下列说法正确的是( )
A.
直方图的高表示该组上的个体在样本中出现的频率与组距的比值
B.
直方图的高表示该组上的个体在样本中出现的频率
【多选题】In the videos related to procrastination, a careful distinction was made between "process" and "product." Select the following true statements related to "process" and "product."
A.
As the videos emphasized, "product" refers to being productive--to getting things done in a small amount of time to maximize your ability to go off and have fun.
B.
As stated in one of this week's videos, you want to avoid focusing on a process because thinking about a process is frequently what triggers the pain that causes you to procrastinate.
C.
The Pomodoro technique is effective because it helps you get into the flow of the process.
D.
"Product" refers to the outcome of a task. Examples of "product" include finishing a homework set or completing the writing of a report.
【简答题】After determining the target audience for a product or service, advertising agencies must select the appropriate media for the advertisement. We discuss here major types of media used in advertising. ...
【单选题】You need to list the name and price of each product, sorted by price from highest to lowest.Which statement should you use? A. SELECT Name,Price FROM Product ORDER BY Price DESC B. SELECT Name,Pr...