A:did I shout…that he turned
B:I shouted…did he turn
C:did I shouted…he did turn
D:I was shouting…he had turned
按要求填空:
阿糖胞苷是一种嘧啶类抗癌药物,在细胞中能有效抑制DNA聚合酶的合成.当阿糖胞苷进入癌症患者体内后,机体短期内可能发生的明显变化是( )