2016-10-01 Report: Smoking May Permanently Damage Genetic Material
Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a…
VOA英语教学网 - VOA Learning English
一个让你免费在线学习VOA英语的好地方! 无须报名, 不收学费, 全年无休, 保证提高! (^_^)
Here is another reason to not light up a cigarette. Smoking can permanently damage your genetic material, according to a…