股骨颈骨折后是否发生股骨头缺血性坏死,相关因素包括()
A.年龄
B.骨折线高度
C.骨折原始移位程度
D.骨折后的复位与内固定
E.以上都是
参考答案:E
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
拔毒去腐作用最强的药物是()。
A.升药
B.轻粉
C.砒石
D.炉甘石
E.铅丹