单项选择题
A. how to separate the DNA unwanted substances B. how different the embalming materials are from mummy to mummy C. how to take steps to purify the DNA D. how to take steps to avoid the destruction of the tissue
A.advocates the Congress’s rejection of ownership rules. B.calls for the Congress’s approval of FCC’s decision. C.expresses his concern over the future of media companies. D.speaks up for big media companies as well as poor people.