()可以独立承担审核任务。
A.实习审核员
B.技术专家
C.审核组长
D.观察员
参考答案:C
Throughout history, the language________ by a powerful group spreads across a civilization. [ ]
A. speaking
B. spoken
C. to speak
D. to be spoken
吐丝机前夹送辊夹送大规格轧件时,需对尾部()夹送,以推动线材尾部顺利成圈。
A.降速
B.升速
C.增加压紧力
D.减小压紧力