单项选择题
A．via B．under C．by D．for
A．the farther a man goes, the more treasures he gets B．the more a man sees, the more knowledge he gets C．travelling is more interesting than reading D．the farther a man goes, the more hooks he reads
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