根据你掌握的化学知识,你认为下列认知符合科学事实的是( )
A:管道天然气有刺鼻的气味,说明甲烷是无色有刺激性气味的气体
B:能导电的物质一定是金属材料
C:氢氧化铝可治疗胃酸过多,故氢氧化钠也可治疗胃酸过多
D:中和反应生成盐和水,但生成盐和水的反应不一定是中和反应
根据句意及首字母提示完成单词。 It's too hot, we need to drink more w____. Mr. Black looks u____ , but he is a really good man. —How is the salad? —Very d____.—Where is the post office? —It's at the c____ of the street. The movie Avatar is great. We d____to see it again.