外航英文时差换算题、大家帮忙看下、非常感谢! 1.singapore is ahead of qatar by 5 hours,so if it is1200 hours in qatar,the time in singapore will be? a 1700hours b 1900hours c 1200hours d 0700hours 2.if it is midnight in singapore,what time will it be in qatar? a 5.00p.m b 5.00a.m c 7.00pm d 7.00am 还要请大家帮忙翻译下中文题意、我怕我自己理解的题意不对、还有解题思路也要说下!非常感激!