简述溶源细胞的特征。
参考答案:
(1)免疫性
(2)形成新的代谢产物
(3)自发裂解
(4)复愈性
(5)诱发裂解
________ more attention, the trees could have grown much better. [ ]
A. To give
B. Give
C. Having given
D. Given
庆大霉素与速尿合用的结果是()
A.利尿作用增强
B.肾毒性减轻
C.耳毒性加重
D.抗菌作用增强
E.肾毒性加重