{1,000,000,000點} 陽光普照的背後... ...

2007-05-18 4:13 pm
究竟係陽光,定係陽光裏面既紫外線令到人体既皮膚黑D?(定係两樣到有/冇''分''?)

回答 (2)

2007-05-18 4:28 pm
✔ 最佳答案
UV(UVA,UVB,UVC)
2007-05-18 4:28 pm
係紫外線!


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