题目选项分析

Because 70 percent of the people of India use wood as their sole fuel, ten million acres of forest have been lost there since 1960, resulting in wood now costing eight times as much to collect and distribute thanin 1960.

Because 70 percent of the people of India use wood as their sole fuel, ten million acres of forest have been lost there since 1960, and as a result wood now costs eight times as much to collect and distribute as it didin 1960.