加工中心工作站中，检测单元的功能是什么？

the officer feel when he herd the sound of shot he didn’t know wht to do B．he thought the young mn hd been ded C．he wnted to send the young mn to hospitl D．he thought the young mn ws hopelessA．he didn’t know what to doB．he thought the young man had been deadC．he wanted to send the young man to hospitalD．he thought the young man was hopeless