[单项选择]A single night of taking the drag Ecstasy can cause serious brain damage and hasten the (62) of Parkinson’s disease, scientists say．Just two to three Ecstasy tablets—a quantity that thousands of clubbers take during raves—can permanently (63) brain cells that affect movement and (64) , according to American research that (65) the drug to Parkinson’s for the first time．
A study by a team at Johns Hopkins University in Baltimore, Maryland, (66) monkeys and baboons found that both species of primate (67) irreversible damage to key cells (68) dopamine neurons, which are lost in Parkinson’s, after receiving three low doses of Ecstasy at three—hour (69) ．
The study is particularly significant (70) baboons are one of the best animal models for the human brain．George Ricaurte, who led the research, said that widespread (71) of the drug may already be (72) victims of such neurolog
A. enlarging
B. extending
C. increasing
D. expanding