[求助]又一个小问题（关于OOP的）

A. Assertions can be enabled or disabled on a class-by-class basis.
B. Conditional compilation is used to allow tested classes to run at full speed.
C. Assertions are appropriate for checking the validity of arguments in a method.
D. The programmer can choose to execute a return statement or to throw an exception if an assertion fails.
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判断对错，最好能帮我翻译一下啊，谢谢
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