什么叫奥氏体？
参考答案：
奥氏体是钢的一种基本组织，是碳溶于γ-Fe中的形成的固溶体。
Speaker A:()
Speaker B: I’m running a temperature, and feel sick.
A. What can I do for you
B. What seems to be the trouble
C. What are you doing these days
D. How long has this been going on
试论欧阳修诗歌的艺术特点。
