这是和巴渝大地奇特的自然环境、独具的区位优势、稳固的军政中心、复合的文化组成、多样的办学模式分不开的。
And this is originated from its peculiar natural environment, unique location, sound military and political center, compound composition of culture as well as various patterns of different schools.
那些拥有绚丽羽毛的种类总是吃那些多样及可靠的食物：各种昆虫及拥有复合营养的水果。
Those species with the most elaborate plumage also have the most diverse and reliable diet: a variety of insects, and fruits rich in complex nutrients.
本文从农村复合生态系统多样化的结构特点出发，提出了系统设计的基本步骤，并据此给出了设计后系统的评价指标。
Based on this feature, this paper gives a designing process on the structure of system and an evaluation method of its performance.
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