吹氩可以均匀钢水成分和温度,所以吹氩时间越长越好。
参考答案:错
吹氩可以均匀钢水成分和温度,所以吹氩时间越长越好。
参考答案:错
词汇运用. |
1.I'm sorry,but I didn't mean to ________(使你心烦). 2.Ignore the bell and go somewhere quiet to ________(使你朋友平静下来). 3.Rescuers ________(关心) the safety of the men trapped in the fire. 4.We are surprised at ________(他对法律的忽视). 5.Any student caught ________(作弊) in the exam will be punished. 6.The kids________(疯狂) when the film star appeared. 7.We ________(共有) the same interest and she ________(分担) my troubles as well. 8.The war brings so much ________(痛苦) that people are eager for peace. 9.Having done something wrong,he ________(不敢) go home. 10.The heavy snow prevented all the ________(与……的联系) the outside world. |