填空题 A. the nucleus of a cell
B. cloned human beings
C. a human being in two years
D. a law to ban human cloning
E. a report on human cloning
F. heavy media coverage

填空题 Richard Seed claimed to be able to clone 1.

填空题 Richard Seed's announcement received 1.

填空题 The United States will introduce 1.

填空题 Within ten years scientists will probably have 1.