题目

Scientists have uncovered the exact difference between man and mouse. Teams of scientists from around the world will publish today the draft(草图) genome(基因组) of the mouse, which enables them for the first time to compare another mammal’s entire DNA directly with that of a human. The similarities are far greater than the difference－man and mouse share a comman ancestor that lived more than 70 million years ago－which has allowed scientists to find treatments for a good many human diseases. British members of the project say the draft mouse genome, published in the journal Nature, ______ to his work, the scientist didn't get married all his life.   [     ] A. Devoting    B. To devote    C. Devote     D. Devoted