Whichoneisthemeritofthecomputer?

A.keepintouchwithourfriendsandfamilymembersthroughvideochat.

B.efficientlyfindtheinformationthroughsearchengine

C.teacherscanutilizeonlineresourcestomakeasupplementtotheirteachingcontents

D.Dtheemployeeshavemorefreedom,andmoreflexibleworkschedules.

正确答案：ABCD