题干
Asimov began having his stories ______ in science magazines in 1939.
A：publish
B：published
C：publishing
D：to publish
答案(点此获取答案解析）
B
。若用下列物质代替氢气进行上述实验：①一氧化碳、②稀硝酸、③稀盐酸、④乙醇，铜丝表面所观察到的现象、铜丝质量变化情况与上述实验完全相同的是（ ）