有一张UserInfo表,需要过滤出姓名(username)为xiaoming,性别(sex)为male的数据,假设只有一条数据符合条件,以下哪些语法是正确的?()
- A、UserInfo.objects.get(username=xiaoming,sex=male)
- B、UserInfo.objects.get(username=xiaoming).get(sex=male)
- C、UserInfo.objects.filter(username=xiaoming,sex=male)
- D、UserInfo.objects.filter(username=xiaoming).filter(sex=male)

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