题目

Few of us make money by losing sleep. But three graduate students at Brown University in Providence built a company around sleep deprivation(睡眠不足).        Jason Donahue, Ben Rubin and Eric Shashoua were working late nights in Brown’s business and engineering schools. They began thinking about ways to sleep better. They discovered they weren’t alone in burning the midnight oil. Around 20% of Americans get less than six hours of rest a night.        The friends imagined a smart alarm clock that could track how much time people spend in the most restorative(有恢下列化学反应属于水解反应的是（ ）①核酸→核苷酸 ②葡萄糖→丙酮酸 ③ATP→ADPA．①② B．①③ C．②③ D．①②③