2014-05-11 23:52
原题：
design an alarm clock for a deaf person.
题目：为聋人设计闹钟？
解法：聋人听不见，那么闪光、震动都可行。睡着的人也看不见光，所以震动应该是更靠谱的。个人觉得做成手表戴在手上的时候，才能保证震动有用。这样，睡觉的时候就得戴着手表了。
代码：
1 // http://www.careercup.com/question?id=5175246478901248 2 Answer: 3 Deaf people can't hear, thus they need to feel or see. 4 Vibration: 5 Vibration may alert people, but need close contact, thus this special alarm clock may have to be alarm watch, which is worn round the wrist. 6 You wear the alarm watch and you feel the vibration. 7 Light: 8 Strong flash light may catch people's attention, but this may not be effective to wake you up. Who sleeps with their eye open? 9
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