A.larger populations
B.different locations
C.different roles
D.different social classes
A.writing
B.arithmetic
C.art expression
D.agriculture
A.West European cities established their own urban tradition.
B.West European cities grew directly out of those in the Middle East.
C.Cities appeared earlier in the Middle East than in Greece and Rome.
D.West European and Middle East cities went through the same phases.
A.A town hall.
B.A vegetable garden.
C.A local cafeteria.
D.A farm.