【简答题】TASK D CLOZE Decide which of the choices given belo w would best complete t h e passage if inserted in the corresponding blanks . 请将答案填在文中的横线上 We have our life experience only once. Our life is1_ ____...
【简答题】Normally, if a healthy cell acquires too many mutations to develop properly, the p53 gene will initiate cellular suicide. If this gene stops working, however, the cell keeps growing and can become mal...