下列选项中“基础”一词用的正确的是 ①文化是由人所创造的,实践是基础 ②文化具有民族性和世界性,世界性是基础 ③文化的发展需要创新,继承是基础 ④文化是对经济、政治的反映,政治是基础 A.①② B.①②③ C.①③ D.②③④ 答案:C 解析: 略单词分类;请根据所给句子的意思,从下面的方框中选出可以填入句子中的单词,并将其字母标号填在答题卷相应的位置。小题1:Do you know that scientists have / water on Mars?小题2:We all like the music because it is very / .小题3:He is a clever boy and he can play the / very well.小题4:Tony’s father is a famous / .小题5:You should smile when you like or .