单项选择题
A．They are going to invite some friends to play cards. B．They plan to go to a Chinese restaurant. C．They will go to see a horror movie. D．None of the above.
A. the contradiction between economists and the business community B. the present debate on economic growth C. the advantages and disadvantages of economic growth D. the importance of the debate on economic growth
A. They are the killers second only to smoking as cause of lung cancer. B. They can compensate for the abnormal DNA. C. High dosage and low dosage of them have the same effect on people’s health. D. They are the number one killer of people’s health.