Because folk art is neither completely rejected nor accepted as an art form by art historians, their final evaluations of it necessarily remain ______.

单项选择题With its maverick approach to the subject, Shere Hite's book has been more widely debated than most. The media throughout the country have brought the author's ______ opinions to the public's attention.

单项选择题In parts of the Arctic, the land grades into the landfast ice so ______ that you can walk off the coast and not know you are over the hidden se