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1噸=1000千克 ∴1噸60千克=1又3/50噸或53/50噸 一時=60分 ∴145分=2又5/12時或29/12時 這是我在靜心思考後得出的結論, 如果不能請追問,我會盡全力幫您解決的~ 如果您有所不滿願意,請諒解~
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