题目内容
他告诉你的全是无稽之谈。（nonsense）
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Negotiators(谈判人员)in some countries always discuss topics other than business at the negotiation table, but not for long. It is usually moved to the specific business at hand after 5 to 10 minutes. Such preliminary(开始的)talk is much more than friendliness an d politeness. Before getting to the business at hand, it is important to learn how the other side feels this particular way.
铝极氩弧焊时为避免钨极烧损严重常采用直接反接法. （）
一般结构钢焊条(如结422)的焊芯是选用HO8MnA钢制造的。（）
对薄壁件进行焊接时,宜采用下列哪种焊接方法（）
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