[单项选择] 第一篇 Eye-tracker Lots You Drag and Drop Files with a Glance Bored of using a mouse Soon you’ll be able to change stuff on your computer screen – and then move it directly onto your smartphone or tablet(平板电脑) –with nothing more than a glance. A system called EyeDrop uses a head-mounted eye tracker that simultaneously records your field of view so it knows where you are looking on the screen. Gazing at an object – a photo, say – and then pressing a key, selects that object. It can then be moved from the screen to a tablet or smartphone just by glancing at the second device, as long as the two are connected wirelessly. "The beauty of using gaze to support this is that our eyes naturally focus on content that we want to acquire, "says Jayson Turner, who developed the system with colleagues at Lancaster University, UK. Turner believes EyeDrop would be useful to transfer an interactive map or contact information from a public display to your smartphone or f
A. To minimize the cost of EyeDrop.
B. To choose as many objects as possible.
C. To make EyeDrop different from others.
D. To select what we want.