单选题
发布日期:2021-08-19
chemicals are not necessary for preserving food
a small quantity of bacteria in food is good to people
those chemicals that kill bacteria may not be good to people
there are other better ways to preserve food
标签: "暂无标签"
题王网让考试变得更简单
扫码关注题王,更多免费功能准备上线!
此试题出现在