单项选择题
A.Differences between modes of learning. B.Deficiencies of formal learning. C.Advantages of informal learning. D.Social context and learning systems.
A.demonstrate how to prevent crime. B.show the seriousness of crime. C.look into the causes of crime. D.call for more government efforts.
A.Meeting in places difficult to reach. B.Further repressing dissent. C.Accepting the protesters' agenda. D.Abandoning global meetings.