【单选题】-- ______ to be a PLA soldier when I was young. -- And now you are.
【单选题】将以下6个句子重新排列组合: (1)由于内细胞群能发育成完整的个体,因而这些细胞被认为具有全能性。 (2)人类胚胎干细胞是人类胚胎发育早期——囊胚中未分化的细胞。 (3)中心的腔称为囊胚腔,腔内侧有内细胞群。 (4)成人身上也有干细胞,主要分布于骨髓、血液、大脑、胰腺等处,比如骨髓和血液中就有造血干细胞。 (5)内细胞群在形成内、中、外三个胚层时开始分化。 (6)囊胚外表是一层扁平细胞,可发育成胚...
【单选题】Unit 5-2.mp3: I f ____of the goods are not qualified, this batch of goods will be done over again.
【简答题】I ____ this man with receiving stolen goods.6.I ____ this man with receiving stolen goods. A) accuse B) charge C) scold D) blame
【单选题】______ the PLA men the villagers would not have survived the flood. ( )