题型:填空题 中枢神经系统白血病发病机制是()A.进入脑组织的白血病细胞对化疗药耐受B.化疗方案不彻底,不能杀死白血病细胞C.多数化疗药物不能透过血脑屏障D.化疗不够早,白血病细胞大量繁殖E.患者个体差异 查看答案
题型:填空题 In relation to the Company Law of China:(b) state the reasons why a joint stock company is generally not allowed to purchase its own shares, except under special circumstances. (4 marks) 查看答案