The various pumps and lines are （） to some extent so that each pump can act as an alternative for another. ["interlocked","interconnected","interfered","interacted"]
我国危险化学品的主安全标志有（）种。 ["14","16","11","17"]
冲压生产中预防废品的措施有哪些？
冷冲压生产技术检查工作包括哪些内容？
公司将资金占用在应收账款上而放弃的投资于其他方面的收益，称为应收账款的（） ["管理成本","坏账成本","短缺成本","机会成本"]
简述乌苏里似棘头吻虫的主要特征。
