题目内容：
关键词的搜索匹配方法可以有（）
A.广泛匹配
B.精准匹配
C.短语匹配
D.否定词匹配
参考答案：
选择题：关键词的搜索匹配方法可以有（）
- 题目分类：中国大学MOOC慕课
- 题目类型：选择题
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