Evaluate the following statement： Which statement is true regarding the evaluation of rows returned by the subquery in the INSERT statement？（） They are evaluated by all the three WHEN clauses regardless of the results of the evaluation of any other WHEN clause.。 They are evaluated by the first WHEN clause. If the condition is true， then the row would be evaluated by the subsequent WHEN clauses.。 They are evaluated by the first WHEN clause. If the condition is false， then the row would be evaluated by the subsequent WHEN clauses.。 The INSERT statement would give an error because the ELSE clause is not present for support in case none of the WHEN clauses are true.。
关于用例各类，错误的说法是（） 两者都属于模型图的构成元素。 存在抽象用例和抽象类。 类图描述系统的部分静态视图，用例图描述系统与用户之间的交互视图。 两者都可以用来描述系统的内部结构。
（）：焊接在气瓶封头上用以装配瓶阀的零件。 阀座。 瓶口。 底座。 瓶底。
A sales analyst reviews the first draft on your Sales application, and requests that the application graphically represent revenue generated for each sales representative, in addition to the textual data currently displayed for the ORDER block. How would you incorporate this graphic in your form? （） Invoke the Chart Wizard and create a chart based on the ORDER block. 。 Create a chart using Graphics Builder and then select File Import Chart in Form Builder, positioning the new chart with the text items in the ORDER block. 。 Invoke the Data Block Wizard in reentrant mode, select the Charts tab, and specify the chart type and column sources for the X and Y axes. 。 Select the Chart node in the Object Navigator, Click the Create icon, and specify the details of the chart in the chart's Property Palette.。
税金包含营业税和（）。 所得税。 城市维护建设税。 教育费附加。 地方教育附加。
Which three statements are true concerning unplugging a pluggable database (PDB)?（）
