下列哪项不是恶性骨肿瘤所特有的X线表现()
A.Codman三角
B."葱皮"现象
C."日光射线"形态
D.肿瘤骨
E.病理性骨折
参考答案:C
All of my classmates felt excited when we heard the news that Zhou Tao
our school sport record.
A. hit B. broke C. caused
网元间IP传输()。
A.需要中继MGW
B.灵活的传输选择
C.成本高
D.节约传输带宽