Select the following computer systems which are instances of artificial intelligence. 选择下列计算机系统中属于人工智能的实例

A.Robot机器人

B.Intelligent personal assistant智能个人助理

C.Voice-activated telephone menus声控电话菜单

D.Web search enginesWeb搜索引擎

E.Distributed computing超市条形码扫描器

正确答案：Robot机器人；Intelligent personal assistant智能个人助理；Web search enginesWeb搜索引擎