2月GMAT逻辑机经：coal mining.

　　GMAT机经每月都会有所更新，这不初冬的寒流刮来了GMAT逻辑机经，澳际小编就在这寒冬中为大家吹来一股GMAT机经的暖风，为大家分享关于coal mining的机经，希望大家能感受到这股暖意，并把它化为能量，在GMAT考试的道路上勇往直前。

　　【原始】

　　政府财政支持coal mining，所以coal mining得到很大发展，产量变多，民众付的价格变低。但是考虑到环境问题，政府打算从coal mining转化到污染更少的fuel，为了达到这个目标，政府打算削减coal mining的财政补助，问削弱。 选项不好意思我忘了，有从价格角度来说的，还有从削减财政补助会造成什么后果的角度，好像还有一个是说其实fuel污染更大。

　　【考古】

　　Twenty years ago, Balzania put in place regulations requiring operators of surface mines to pay for the reclamation of mined-out land. Since then, reclamation technology has not improved. Yet, the average reclamation cost for a surface coal mine being reclaimed today is only four dollars per ton of coal that the mine produced, less than half what it cost to reclaim surface mines in the years immediately after the regulations took fect.

　　Which of the following, if true, most helps to account for the drop in reclamation costs described?

　　A. Even after Balzania began requiring surface mine operators to pay reclamation costs, coal mines in Balzania continued to be less expensive to operate than coal mines in almost any other country.?

　　B. In the twenty years since the regulations took fect, the use of coal as a fuel has declined from the level it was at in the previous twenty years.

　　C. Mine operators have generally ceased surface mining in the mountainous areas of Balzania because reclamation costs per ton of coal produced are particularly high for mines in such areas.

　　D. Even after Balzania began requiring surface mine operators to pay reclamation costs, surface mines continued to produce coal at a lower total cost than underground mines.?

　　E. As compared to twenty years ago, a greater percentage of the coal mined in Balzania today comes from surface mines.

　　以上就是关于GMAT机经的全部内容，考生朋友可以有选择的看看，最后需要提醒各位的是，GMAT机经虽然会对我们解题有所帮助，但是在考场中即使题目很像也要避免秒选，最后祝大家都能考出好成绩。