A． Expanding its import.
B． Expanding its export.
C． Boosting domestic consumption.
D． Reducing taxes on industry.

A． Some new factories.
B． Some first-class universities.
C． A multitier transport system.
D． Many trees.

A． The use of beads in Native American monetary systems.
B． Communication over long distances in southeastern canada.
C． Difficulties encountered by native couriers.
D． Alliances between the Iroquois and the Algonquin.