Complete the following statements with proper words or expressions according to the course book.In the sentence “Copernicus believed in a heliocentric universe, rather than in the geocentric theory.”, the word “heliocentric” is explained by the clue of ( )structure.
【正确答案】：WORD
【题目解析】：在“哥白尼相信日心宇宙，而不是地心理论”这句话中，“日心”这个词是用词的结构的线索来解释的。
