【单选题】听力原文: Advertising is the tool that has always been used to convince the public to buy products. In the beginning, it was a basic and crude tool. Craftsmen cried out to passers-by, telling the quality ...
A.
By door to door advertising.
C.
By verbal announcements.
【判断题】维生素 B 12 分子中含有金属离子钴。
【判断题】审计重要性在计划阶段初步确定后,就不应再变动,以保证审计工作的稳定。
【简答题】第一节 磁是什么练习.doc 手写拍照上传
【判断题】企业同时生产多种产品,保本点既可以实物量表示,也可以金额表示。( )