문제 내용: Today the technology to create the visual component of virtual-reality (VR) experiences is well on its way to becoming widely accessible and affordable. But to work powerfully, virtual reality needs to be about more than visuals. (A) what you are hearing convincingly matches the visuals, the virtual experience breaks apart. Take a basketball game. If the players, the coaches, the announcers, and the crowd all sound like they're sitting midcourt, you may as well watch the game on television you'll get just as much of a sense that you are "there." (B) today's audio equipment and our widely used recording and reproduction formats are simply inadequate to the task of re-creating convincingly the sound of a battlefield on a distant planet, a basketball game at courtside, or a symphony as heard from the first row of a great concert hall.
선택지 1: If
선택지 2: Unless
선택지 3: If
선택지 4: Unless