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【单选题】
Which of the following is NOT true according to the passage?A.
Sometimes people will conceal what they think when being questioned by the market researchers.
B.
Stephen Kosslyn and Gerald Zaltman overlook the experiments and criticize the purpose of the study.
C.
Harvard researchers have found the corresponding relations between people's brain and behavior.
D.
There are many large organizations endorsing and financing the Harvard group's further investigation.
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反馈参考答案：
举一反三
【单选题】焊接冶金反应中利用氧化物能溶解于熔渣中的特性，通过扩散使氧化物自熔池金属进入熔渣中，从而降低金属中氧化物浓度的过程称为()。
A.
先期脱氧
B.
沉淀脱氧
C.
扩散脱氧
D.
后期脱氧
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