In the extremely long evolutionary process from the origin of humans, the most critical and important reason that drives humans to migrate in a wide range and eventually spread all over the world is ( ).
A、 fighting and competition among ethnic groups;
B、 looking for a warm place;
C、 looking for food to survive;
D、 looking for the place with plenty of water
发布时间：2024-12-19 20:51:24
