不定项选择

‍处于域树结构中的域之间有层次关系，这种层次关系除了命名方式外还具有管辖关系。‌

A．正确
B．错误

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人为抛出异常对象e的语句为[填空1]。

答案：第1空:throw e;；throw e

单项选择题

Anya is sending a persuasive memo to her staff asking them to participate in the new wellness program. Which of the following sources of information would be most appropriate to help Anya shape an effective persuasive message for her staff? ( )

A．Tightly controlled scientific experimentation
B．Library research rooms
C．Questionnaires and surveys of employees
D．Research in company files