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题目内容
Laughter, like speech, is primarily a human faculty, although both functions may also exist in a more _____ form in lesser primates.
- Aindispensable
- Bcrucial
- Cprimitive
- Dintelligible
- Erecognizable
- Frudimentary
C,F显示答案
以上解析由 考满分老师提供。