精英家教网 > 高中英语 > 题目详情

18、They carry out _______ checks on milk products to make sure that they are of high quality.

A. common                  B. regular               C. natural                        D. ordinary

18、B 

请在这里输入关键词:
相关习题

科目:高中英语 来源: 题型:

They carry out _______ checks on milk products to make sure that they are of high quality.

A. common                  B. regular               C. natural                        D. ordinary

查看答案和解析>>


同步练习册答案