1. They share what they learn about the world through National Geographic magazines, books, speeches and television programs. ���Ƿ����ӹ��ҵ�����־���鼮���ݽ��Լ����ӽ�Ŀ����ѧ���ĵ���֪ʶ��
2. This is the Geographic Information System courseware, geographic information systems for the beginners who have a good guide. ��Ϊ������Ϣϵͳ�Ŀμ������ڳ�ѧ������Ϣϵͳ�����кܺõ�ָ�����á�
3. Small amounts of geographic variation have been demonstrated in several other traits, such as cortical concentration of certain monoterpene. ������������״�ϣ��ྭ֤���������������죬����Ƥ����ijЩ����ϩŨ�ȡ�
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adj.
1. of or relating to the science of geography
2. determined by geography