一、人体第２２对染色体密码被破译。二、科学家将光速降低到每秒１７米。三、科学家设计出分子发动机。四、德国研制成可称量单个原子的秤。五、哈勃望远镜发现最遥远天体。六、俄美科学家发现超重元素。七、旅美中国学者等发现具有胰岛素功能的天然化合物。八、美科学家利用 First, the body of the first 22 pairs of chromosomes were deciphered. Second, scientists reduce the speed of light to 17 meters per second. Third, scientists designed a molecular engine. Fourth, Germany developed into a single atom weighing scales. Fifth, the Hubble telescope found the most distant objects. Six, Russian and American scientists found that overweight elements. Seven, the United States and other Chinese scholars found the natural compounds with insulin function. Eight, the United States scientists use