The simple detection of a radio signal will be sufficient to answer this most basic of all questions.
对无线电信号的简单探测就足以回答这个最基本的问题。
2
They allow others at the table to feel safe around you, and they signal to others that you are available and excited to answer their questions, or volunteer for their cause.
A better answer, like, "your work will be evaluated according to the documented standards we've already agreed upon," will signal your boss's fairness.