单项选择题
A. information about medicines B. ideas of a scientific research C. knowledge of a culture D. histories of a civilization
A. some of the minority groups’ languages cannot be found on it B. it deprives some of the minority groups of using their languages C. the majority of the world’s languages cannot be found on it D. the languages of some minority groups are not used on it
A. The chairs. B. The curtains. C. The coffee table. D. The ancient yard.