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【判断题】针对低碳钢的电阻焊来讲:低碳钢塑性温度区宽,比较容易获得塑性变形,不需要施加很高的电极压力。( )
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【判断题】不锈钢导热率很低,电阻率高,所以常采用小电流、短时间焊接,焊接功率小,不会造成不锈钢焊件表面过热,能获得高质量的焊点。( )
Discount stores typically fall into the ________ group with respect to margins and volume.
Which of the following wholesaler functions reduces inventory costs and risks to suppliers and customers?
Electronic shopping is a form of direct marketing.
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