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| Ħ�� ��Ӧ�� [��һ��ѧ] | ����Ĺ�ҵ�Ʒ������Ӵ��� [��һ��ѧ] |
| ������� [��һ��ѧ] | ���ӷ�Ӧ�����ӷ�Ӧ����ʽ [��һ��ѧ] |
| ���ߵķ������� [��һ����] | ֲ����巢�� [��һ����] |
| ������л [��һ����] | ˮ�ݴ�л [��һ����] |
| ���������ļ������� [��һ��ѧ] | ��������ͼ����γɼ���㷨��ͼ [��һ��ѧ] |
| ��ĸ����������� [��һ��ѧ] | ����y=Asin(��x+��)��ͼ�� [��һ��ѧ] |
| Բ����Բ׶��Բ̨ [��һ��ѧ] | ����� [��һ����] |
| ��г�� [��һ����] | �����˶�����ʾ [��һ����] |
| ��е�� [��һ����] | ���������˶� [��һ����] |
| The plumber [��һӢ��] | �Ĵ����ǹ�����(Australia Day) |
| ����(Holland) | ���ô����Ȼ���(The Great Nature of Canada) [��һӢ��] |
| ���޺ӹ�(The Nile Valley) | ���ݵ��ϵĴ�ѧ���(Cheju Island) |