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Olympic site, need a tonne of cement,

旺旺xy1232010-04-01 12:10:08 +0000 #1
if a truck can transport b tonnes of time, if you are a director of projects, you are ready to send a car to solve this problem? (B <a)
(派一辆车运a÷b 次,,或派 a÷b辆车运一次,再讨论哪个更好,得出假如车数量够选用地二种方案,因为它更节约时间,更能保证工程进度)
GM之拳2010-04-01 12:21:53 +0000 #2
两种方案的优劣你都说明白了啊。。。。
派a÷b辆车运一次,我选这个

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