单项选择题
A. To meet cyclists from other countries. B. To race with professional athletes. C. To exercise and enjoy themselves.
A. heard from B. cared for C. knew of D. read about
A. infected poultry within 3 km was killed in China B. bird flu case was confirmed in China on Jan. 27 C. human infected cases were found in 11 Asian countries D. over two thirds of China have been effected by the bird flu