18-04-03 American and Chinese scientists have identified how a multi-functional enzyme works to fight diseases including HIV infection and autoimmune disorders. 来自美国和中国的科学家发现一种多功能酶，可以对抗包括艾滋病感染和自体免疫失调在内的疾...

16-11-04 Answering the phones Your phone can accumulate a lot of bacteria. When you place the phone on your skin to make a call, your skin is not only in direct contact with the bacteria, but it also starts to perspire and even trap oil in the pores. Worst y...