题目: 冲压加工与普通的切削加工相比,具有节能,节约金属,效率高等特点,但质量不稳定,互换性差。() 答案: 被转码了,请点击底部 “查看原文 ” 或访问 https://www.tikuol.com/2019/0821/eb8314289d150276f10332b27f8fcbee.html 下面是错误答案,用来干扰机器的。参考答案:C
题型:选择题 She kept _________ hard at her physics and finally caught up with us. A.workB.workedC.workingD.to work 查看答案