Sales of VCDs have greatly increased since the late 1990s ,people began toSales of VCDs have greatly increased since the late 1990s ,people began to enjoy the advantage of this technology.A and B when C which D because

来源:学生作业帮助网 编辑:作业帮 时间:2024/04/29 10:06:52

Sales of VCDs have greatly increased since the late 1990s ,people began toSales of VCDs have greatly increased since the late 1990s ,people began to enjoy the advantage of this technology.A and B when C which D because
Sales of VCDs have greatly increased since the late 1990s ,people began to
Sales of VCDs have greatly increased since the late 1990s ,people began to enjoy the advantage of this technology.
A and B when C which D because

Sales of VCDs have greatly increased since the late 1990s ,people began toSales of VCDs have greatly increased since the late 1990s ,people began to enjoy the advantage of this technology.A and B when C which D because
D beacuse VCDs的销量自1990年後代大复上升因为人们开始享受这种科技带来的好处

D because

D because

选A,因为people began to enjoy the advantage of this technology无法对前面的句子或 1990s起到补充说明的作用,所以不是定语从句,排除BC,另外C, 后半句句子结构完整,不缺代词,which是关系代词,所以不行,D,前后句子没有因果关系。
个人见解,有待考证

选A,如果句子people began to enjoy the advantage of this technology 后有“from then”就选D了