【Yi Ting Chu】評論
___49___ early MOOCs often emphasized open access features, such as connectivism and open licensing of content, structure, and learning goals, to promote the reuse and remixing of resources, some notable newer MOOCs use closed licenses for their course materials, while maintaining free access for students.(A) When 當...的時候(B) Because 因為(C) Although 雖然(D) As 當open跟closed是相反的概念→語句有轉折→選(C)Although