2017 Shanghai Question 3 Free-response Differentiating 2017_上海卷 (化学) 3. .将NH 3 通过灼热的CuO,发现生成一种红色的单质和一种气体单质,这种气体单质是 : A. O2B. H 2C. N 2D. NO Answer keyC ☆ SaveCan't do it, show the explanation查看原卷 →