题目内容

以下不属于焊接工艺参数的有:

A. 电源极性
B. 焊机型号
C. 焊接层次
D. 运条方式

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以下不属于钢材边缘加工方式的有:

A. 修边
B. 刨边
C. 铣边
D. 铲边

Choose the best answerMy brother's plans are very______, he wants to master English, French and Spanish before he is sixteen.

A. arbitrary
B. aggressive
C. ambitious
D. abundant

Louis Herman, at the University of Hawaii, has a series of new experiments in which some animals have learned to understand sentence.

A. installed
B. equipped
C. devised
D. formatted

A culture in which the citizens share similar religious beliefs and values is more likely to have laws that represent the wishes of its people than a culture when citizens come from________backgrounds

A. extensive
B. influential
C. diverse
D. identical

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