明显是B By the sixteenth century, the Incas of South America ruled an empire that extended along the Pacific coast and Line Andean highlands from what is now (5) Ecuador to central Chile. While most of the Incas were self-sufficient agriculturists, the inhabitants of the highland basins above 9,000 feet were constrained by the kinds of crops they inhabitants of the highland basins的问题 (10) could cultivate. Whereas 95 percent of the principal Andean food crops can be cultivated below 3,000 feet, only 20 percent reproduce readily above 9,000 feet. Given this unequal (15) resource distribution, highland Incas 解决 needed access to the products of lower, warmer climatic zones in order to enlarge the variety and quantity of 改写 Increasing commodity production from the their foodstuffs. In most of the prein- ecological zones in the highland basins (20) dustrial world, the problem of different resource distribution was resolved by long-distance trade networks over GWD-9-Q5 N-17-Q6 G-9-Q5:
According to the passage, the inhabitants of the Andean highlands resolved the problem of unequal resource distribution primarily in which of the following ways? - Following self-sufficient
agricultural practices - Increasing commodity production from the ecological zones in the
highland basins - Increasing their reliance on
long-distance trade networks - Establishing satellite
communities throughout the Andean highlands - Establishing production
forces in ecological zones beyond their parent communities
[此贴子已经被作者于2007-3-18 2:46:01编辑过] |