冲压生产中预防废品的措施有哪些？
简述下级向上级领导汇报工作时应注意的礼仪。
简述乌苏里似棘头吻虫的主要特征。
According to the way the steering gear is operated, the steering gear may be divided into: hand - steering, （） and automatic steering. ["hydraulic steering","follow-up steering","remote control steering","air controlled steering"]
会议中如何安排座次？
冷冲压生产技术检查工作包括哪些内容？
