目前已知一共有18个种类,主要的区别在于头的颜色和体型的大小。
There are 18 species of penguins. Themain differences between are the color of head and their size.
目前已知一共有18个种类,主要的区别在于头的颜色和体型的大小。
There are 18 species of penguins. The main differences between are the color of head and their size.
对于信息资源概念的认识可分为宽泛型、狭窄型、折中型和信息本体型四种类型,其中信息本体型更可取。
For information resources, there are wide, narrow, eclectic and information-based concepts. Among them, the information-based concept is more acceptable.
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