题目内容

In the second stage (negotiation), what kind of things may make you have the sense of disconnection from the surroundings?

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In the third stage, how will your attitude change positively?

In the stage of “adaptation”, what can you know of the new culture?

钢包内脱氧含量化的关健是掌握好加入含量的时间，一般当钢水流出总量的（）时开始加入。

A. 2/4
B. 1/3
C. 1/4

氧气转炉是用（）耐火材料砌筑的。

A. 碱性
B. 中性
C. 酸性