宇宙大爆炸理论视频

视频简介

When 15-year-old Jennifer Pandos went missing in 1987, her parents told everyone she ran away. Decades later, her brother Stephen begins a relentless odyssey in search of the truth. His investigation into the case threatens to destroy his family as he becomes strongly convinced that his parents are both implicated in the crime. As time passes, more threads unravel and new evide...。抗生素是抑制细菌生长或杀死细菌的药物类别。抗生素拯救了亿万人的生命，但滥用抗生素也将造成危险后果。Angela Rippon讲述抗生素的历史和应用，以及科学家寻找替代药物的努力。。