A.items a consumer doesn't need
B.new items
C.life insurance
D.all the above
A.refrigerator
B.car
C.dishes
D.television set
A.to review the factors that affect economic operation
B.to explore the causes of periodic economic decline
C.to discuss the role governments play in modern industrialized societies
D.to propose remedies for correcting economic recessions
A.the political system of a nation
B.the economy of a nation
C.the market force
D.the government of a nation