多项选择题
Given that: Gadget has-a Sprocket and Gadget has-a Spring and Gadget is-a Widget and Widget has-a Sprocket Which two code fragments represent these relationships? （）
A. B. C. D. E. F.
单项选择题 Given: What is the result?（）
单项选择题 Given: When the doSomething method is called, after which line does the Object created in line 5 become available for garbage collection?（）
