题目

To us it seems so natural to put up an umbrella to keep the water off when it rains, But actually the umbrella was not invented as protection against the rain, Its first use was as a shade against the sun! Nobody knows who first invented it, but the umbrella was used in very ancient times . Probably the first to use it were the Chinese in the 11th century B C. We know that the umbrella was used in ancient Egypt and Babylon as a sunshade. And there was a strange thing connected with its use: it became a symbol of honor. In the Far East in ancient times, the umbrella was allowed to be used only下列每组物质发生状态变化所克服的微粒间的相互作用属于同种类型的是(    ) A.食盐和蔗糖熔化                         B.钠和硫熔化C.碘和干冰升华                            D.二氧化硅和氧化钠熔化