题目内容

LF炉又称（）

A. 钢包精炼炉
B. 真空循环脱气法
C. 转炉
D. 电炉

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氩气是一种（）气体

A. 惰性
B. 氧化性
C. 还原性

LF精炼过程中钢包中吹氩的作用有（）

A. 调温
B. 净化
C. 混匀
D. 氧化

According to the affixation knowledge you have learned, choose the word or phrase which has the same meaning as the underlined parts.1.All children should get education, irrespective of their race and religion.

A. in comparison to
B. with a view to
C. with reference to
D. without regard to

2.The banks should have been more circumspect in their dealings.

A. cautious
B. mature
C. risky
D. bold