钢后轧件没立即退出,辊身冷却水也未关,钢退出轧机后继续轧制,轧辊辊身易产生()。A. 发布时间:2019-10-15 01:08 │ 来源:www.tikuol.com 题型:单项选择题 问题: 钢后轧件没立即退出,辊身冷却水也未关,钢退出轧机后继续轧制,轧辊辊身易产生()。A.网纹B.凹坑C.掉皮D.断裂
题型:单项选择题 I _____ my teacher carefully, but I can't _____ him.[ ]A. listen, hearB. hear, listen toC. listen to, hearD. hear, listen 查看答案