【多选题】合同变更或解除的条件描述正确的是()
A.
当事人双方经协商同意,并且不因此损害国家利益和社会公共利益
【单选题】They didn't find the name of the boy in the list, ________, of course, made them very disappointed.
【单选题】企业应当定期以及在质量管理体系关键要素发生重大变化时,组织开展( )
【单选题】商品分类时主要采用线分类法和面分类法,实践中通常将两种方法( )。
【单选题】They didn't find ___ to prepare for the worst conditions they might meet.
【简答题】1-2.某四冲程汽油机有四个气缸,气缸直径75mm,活塞行程91mm,压缩比为6,计算其气缸工作容积、燃烧室容积和发动机排量。
【简答题】实现中文和英文输入法之间切换的快捷键为__________。
【简答题】A.They found out some witnesses. B.They didn't find any money in the men's bags. C.They caught the real thieves. D.The two men refused to admit stealing money.