题型:问答题 简答题 (泉州市)二氧化氯(C102)是一种新型自来水消毒剂.下列有关二氧化氯说法错误的是( )A.由氯元素和氧元素组成B.相对分子质量是67.5C.是一种氧化物D.氯氧两元素的质量比是1:2 查看答案
题型:问答题 简答题 Reverse distribution is the part of ()A. From sellers to buyersB. From buyers to sellersC. From outside to inside of any companyD. From wholesalers to retailers 查看答案