Which factor may be associated with gray out? （ ）
举一反三
- Which of the following may be associated with genetic factors?
- Which of the following factors is associated with mental disorders?() A: biological factor B: psychological factor C: social factor D: all of the above E: None of the above
- Red may be associated with the feeling of anger.
- Disease may either be associated with illness or be ______.
- Which of the following is not associated with mountain?