they go off at the same time at 0, 30, 60, 90, 120, 150, 180, 210, 240, 270 and 300.
300 is on the 5th min, 该算吗?
they go off at the same time at 0, 30, 60, 90, 120, 150, 180, 210, 240, 270 and 300.
300 is on the 5th min, 该算吗?
•
如果严格按照5min 焰火时间不应该算,算还是不算和数学无关取决于题目本意
-yddad-
♂
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01/22/2016 postreply
08:05:32