亚洲知识产权资讯网为知识产权业界提供一个一站式网上交易平台，协助业界发掘知识产权贸易商机，并与环球知识产权业界建立联系。无论你是知识产权拥有者正在出售您的知识产权，或是制造商需要购买技术以提高操作效能，又或是知识产权配套服务供应商，你将会从本网站发掘到有用的知识产权贸易资讯。

返回搜索结果

Umar Ibn Al-Khattab (English)

总结: Umar was the second of the four ‘rightly guided’ caliphs. At first, he railed against the new Islam religion until he read parts of the  Qur'an. He was instantly impressed and became a believer.

欲了解更多信息，请点击这里