She found him at a laboratory in Shrewsbury , Massachusetts . He and brilliant reproductive physiologist, Gregory Pincus.她终于在马萨诸塞州的一座实验室里找了他,一位才华横溢的繁殖生理学家, 格雷戈里·平卡斯.The male reproductive organs are exterior to the body.男...
地球外存在生命的理论是基于陨星上存在碳化合物质这一事实的.One theory about the existence of extraterrestrial life rests on the presence of carbon compounds in meteorites.在蛋自质中, 氮原子与碳 、 氢、氧原子相化合.In proteins, atoms of nitrogen are combined with carbon...