A.brokers usually perform the same kinds of services to their customers
B.brokers.have little contact with each other
C.open competition tends to result in a common price for similar transactions at any given moment
D.changes in the pressure of available supplies of funds upon market tends to maintain a common price for similar transactions
A.50 years
B.21 years
C.9 years
D.4 years
A.New York
B.London
C.Rome
D.Los Angeles
A.people who support the games
B.people who watch the games
C.people who organize the games
D.people who compete in the games