Which one of the following statements is right? A: Function definitions can be nested, but function calls cannot be nested. B: Function definitions cannot be nested, but function calls can be nested. C: Both function definitions and function calls cannot be nested. D: Both function definitions and function calls can be nested.

They_____land for goods and money. A: traded B: nested C: captured D: crashed

Functions that call themselves are referred to as ____ functions. A: nested B: recursive C: loop-back D: rolling

中国大学MOOC: 与MNL模型相比，Nested Logit模型的优势在于（ ）。

Generally, the most useful nested if statement occurs when a second if-else statement is placed within the else part of an if-else statement.

Which two statements are true regarding the execution of the correlated sub-queries?Choose two.() A: The nested query executes after the outer query returns the row. B: The nested query executes first and then the outer query executes C: The outer query executes only once for the result returned by the inner query. D: Each row returned by the outer query is evaluated for the results returned by the inner query

与MNL模型相比，Nested Logit模型的优势在于（ ）。 A: 考虑选项效用之间的相关性 B: 考虑异质性问题 C: 有闭合形式 D: 参数估计存在唯一解

Which two statements about packages are true?() A: Packages can be nested B: You can pass parameters to packages C: A package is loaded into memory each time it is invoked D: The contents of packages can be shared by many applications E: You can achieve information hiding by making package constructs private

嵌套类（Nested Class）又称为（）即Inner Class；按照是否添加static修饰符可以分为（）内部类和（）内部类。另外还有2种特殊的内部类，分别是定义在方法体内的局部内部类和没有声明名称的（）内部类

Which two statements are true about a job chain？（） A:  A job chain can contain a nested chain of jobs B:  The jobs in a job chain cannot have more than one dependency C:  A job of the CHAIN type can be run using event-based or time-based schedules D:  The jobs in a job chain can be executed only by using the events generated by the Scheduler