搜尋 polar bear

The Polar Bear's Perfect Prese...

出版日期：2024/04/28

作者：Shu Chen Hou

出版：Shu Chen Hou

Shu Chen Hou / Shu Chen Hou

Join Polar, the polar bear, on a chilly adventure in 'The Polar Bear's Perfect Present' as he searches for the ideal gift for his friends, learning ab...

Interactions: Polar Bears Move...

出版日期：2014/06/15

作者：Liew Xue Wei

出版：Young Scientists Pte Ltd

Young Scientists Pte Ltd / Liew Xue Wei

Studying the interactions between and within systems enhances understanding of the environment and Man's role in it. Interactions occur within an orga...