多项选择题 A developer is creating a class Book, that needs to access class Paper. The Paper class is deployed in a JAR named myLib.jar. Which three, taken independently, will allow the developer to use the Paper class while compiling the Book class?（）

单项选择题 Given classes defined in two different files:What is required at line 5 in class SomeApp to use the process method of BitUtils?（）

多项选择题 Which two statements are true?（）