For the first time on record, a lung from a genetically modified pig has been successfully transplanted into a human body, Chinese scientists announced in a study published in Nature. "Lungs are ...

听众 Snow 想知道名词 “human、humankind、people” 和 “humanity” 在表示 “人、人类” 这个意思时有什么不同。在日常生活中，想表示一个人或一群人的时候，最常用到的词语是哪一个？哪个词所强调的 “人” 是与机器、动物等其它物种相对的概念？哪个词指 ...

The 14 countries are Angola, Britain, Chile, Ecuador, Egypt, Estonia, India, Iraq, Italy, Mauritius, Pakistan, Slovenia, South Africa and Vietnam, which will serve in the Human Rights Council for a ...