2.5min=多少s

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2.5min=多少s2.5min=多少s2.5min=多少s1min=60s所以,2.5min=2.5*60=150s150S,也就是150秒

2.5min=多少s
2.5min=多少s

2.5min=多少s
1min=60s
所以,2.5min=2.5*60=150s

150S,也就是150秒