【单选题】M: Excuse me. I’ve booked a room in your hotel for two nights. W: Your name, please. M: John, Carson. W: Let me have a check. Yes, Mr. Carson, your room is ready. M: And where can I park my car? In ou...
【简答题】Let us suppose that a subway has one OCC , five stations and one Parking lot. Distance between adjacent stations is about 3km. Please design the double ring optical fiber transmission system for this...