【简答题】阅读理解。 The iPad is an Apple tablet computer. The device sits somewhere between a laptop and a smart phone, according to Apple's chief executive, Steven P. Jobs, and does certain things better than both...
【简答题】Shall We Turn off Devices at Night? Using tablet computer like Apple's iPad just before bed can lead to a poor night's sleep, according to some researchers, who are warning that the blueish light the ...