What do the five Olympic signs on the flag represent?
Pierre de Coubertin thought that the five interlocking rings meant the five continents
At the end of each Olympic Games, the mayor(市长) of the hosting city passes the Olympic fag to the mayor of the city where the next Olympics
A group of students from England, who are interested in archaeology, have come to the Zhoukoudian caves for a visit. An archaeologist
Early people lived in caves and they made fires in the centre of caves
Early people did wear clothes made from animal skins. They used sharpened stone
Early people also paid attention to their