物理问题: 时间单位换算:

①、0.25h=_____ min =_______ s. ②、3.6×10^9 ms= _______h。③、3h 20min 15s =____ s
2024-12-19 16:38:31
推荐回答(1个)
回答1:

0.25h=__15___ min =____900___ s.
3.6×10^9 ms= ____1000___h
3h 20min 15s = 12015____ s

不清楚可以追问 哦