单项选择题
A．how Louis Pasteur’s friend died B．Louis Pasteur’s experience and achievement in curing rabies C．how Louis Pasteur’s arm and leg were disabled D．Louis Pasteur cured a boy who had been badly bitten by a mad dog
A．it can bring us more knowledge B．it can make us rich C．they have too much money D．it is a good idea
A．To the village. B．To the country. C．To the city. D．To the town.