下列关于“骨巨细胞瘤”恶变征象中应除外哪项()
A.生长速度加快
B.形成软组织肿块
C.骨膜反应加重
D.病灶边缘模糊不清
E.溶骨性骨质破坏
参考答案:E
与细菌核蛋白体50S基结合,抑制细菌蛋白质合成的药是
A.红霉素
B.氯霉素
C.土霉素
D.庆大霉素
E.林可霉素
As we all know, every minute _____ full use of _____ our lessons will do good to our students. [ ]
A. which makes; studying
B. when made; to study
C. that is made; study
D. that is made; studying