Primitive men, due to lack of such entertainments as modern men have, easily got bored.()

判断题Psychology, philosophy, and anthropology are all concerned with the study of meaning.()

判断题.initiative is a negative feeling.()

判断题They may be happy because their work provides a lot of pleasure.()

判断题Most of the people in Asian country have the same language, history and culture.()

判断题Most environmental problems are caused by people.()