觀察後的平均值

觀察後的平均值

結果 (英文) 1:

Mean value after observation

結果 (英文) 2:

Ballet is a kind of court performance dance which originated in the period of Italian literary and artistic prosperity, and later developed into a concert hall dance in France and France and Russia. It's a widely spread but difficult dance. Ballet requires the performer to have special strength and skill because it is different from other dances. Ballet is taught in many professional schools around the world, and national cultures are integrated into the country's culture and art ...