题目

下列化学用语书写正确的是（ ） A. 4个N原子： B. 铁离子： C. 硫酸铝： D. 钠原子的结构示意图： 答案：C根据句意及汉语提示完成句子【1】After a bath, I dry myself with a ______ (毛巾).【2】The air in the ______ (农村)is much fresher than that in cities.【3】Don't speak in a ______ (大声的)voice! Keep silent!【4】The snow and ice on the road caused many ______ (事故)last week.【5】I don't like living in a noisy city. I hope to live a quiet life in a small ______ (村庄).【6】A number of ______ (铁路)cross Xuzhou.【7】A good student should follow the school ______ (规章制度).【8】I am not feeling well today. I have a bad ______ (牙痛).【9】My mother does most of the ______ (家务活)in my family.【10】When you were a child, were you afraid of the ______ (黑暗)?