单选题:According to the passage, FDA approves irradiating food to s 题目分类:理工类 题目类型:单选题 查看权限:VIP 题目内容: According to the passage, FDA approves irradiating food to some extent but irradiated food is not widely accepted. 参考答案: 答案解析:
仓库存有水泥和沙子,已知水泥比沙子多3500千克,水泥的数量比沙子的3倍多500千克.则水泥有多少千克?( ) 仓库存有水泥和沙子,已知水泥比沙子多3500千克,水泥的数量比沙子的3倍多500千克.则水泥有多少千克?( ) 分类:理工类 题型:单选题 查看答案