【提出问题】该脱氧剂中的黑色、红色粉末各是什么?

【提出猜想】黑色粉末可能含炭粉、铁粉、氧化铜中的一种或几种。红色粉末可能含有氧化铁、铜粉中的一种或几种。

材料一：十九大报告提出“为把我国建设成为富强民主文明和谐美丽的社会主义现代化强国而奋斗”，江苏如皋高鼓推进“2 6 3”专项行动，倒逼环境问题的有效解决，环保投入连续多年超过同期GDP的3%；万元GDP能耗降幅、主要污染物减排达到省定标准。2017年先后荣获“中国人居环境奖”，“全国文明城市”。

材料二：今年以来，我市中心城区完成基础设施建设投入近8亿元，城市环境的综合改善，让城市居住舒适度得到显著提升，我市将建档立卡低收入群体全部纳入城乡居民基本医疗保险范围，其个人缴费部分由财政给予全额补助，实现城乡居民基本医疗保险全覆盖，居民幸福感增强。

The Voice of China

    Many Chinese like watching The Voice of China, because the songs sound really good. My daughter, my wife and I like it, too. We watch the programme(节目) every Friday. Some famous singers like Wang Feng, Zhang Huimei, Na Ying, Harlem Yu are the coaches. The coaches listen to the songs, and find their favorite singers. They can listen to the singers , but they can't watch the singers sing . Then they teach (教) their favorite singers. The singers sing songs again. The Voice of China is to find the best voice.