Q24

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 will 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.

答案选B 我选A

请问A有什么不对。

B不是用的被动吗，而且效率是通过提高供给降低价格来刺激需求的。B用的因果关系就没有体现出是效率的作用。