单项选择题
A．images taken with a Polaroid camera B．the latest images taken by a government satellite C．a television camera D．astronauts
A．sightseers have noted the changes B．computer-animated views have shown the shrinkage C．one of the glaciers was hit by a ship D．the temperatures are much colder
A．Hurricanes Irene and Floyd B．Hurricanes Floyd and Carla C．an eruption from a volcano D．deforestation of trees