Although improved efficiency in converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting consumption. A. in converting harvested trees into wood products may reduce harvest rates, it will stimulate demand by increasing supply and lowering prices, thereby boosting B. in converting harvested trees into wood products may reduce harvest rates, demand will be stimulated because of increasing supply and lowering prices, which boost C. of converting harvested trees into wood products may reduce harvest rates, it stimulate demand by increasing supply and lowering prices, which boosts D. of harvested trees being converted into wood products may reduce harvest rates, it will stimulate demand, because it will increase supply and lower prices, thereby boosting E. when harvested trees are converted into wood products may reduce harvest rates, demand will be stimulated because of increasing supply and lowering prices, which boost作者: djdj520r 时间: 2012-8-20 10:39
还是PREP 12 上面的解释为准作者: 燎瞳 时间: 2012-8-20 16:03
A正确 improved修饰it，而非demand B中which只能就近指代一个，所以B错的