题目内容 (请给出正确答案) [主观题] 18,9,4,2,(),1/6A.3B.2C.1D.1/3 18,9,4,2,(),1/6A.3B.2C.1D.1/3 查看答案 如搜索结果不匹配,请 联系老师 获取答案