GWD1-Q14 没有搜到讨论帖..是太简单了么？

yqhpsyche

GWD1-Q14:

That the application of new technology can increase the productivity of existing coal mines is demonstrated by the case of Tribnia’s coal industry.Coal output per miner in Tribnia is double what it was five years ago, even though no new mines have opened.

Which of the following can be properly concluded from the statement about coal output per miner in the passage?

A.If the number of miners working in Tribnian coal mines has remained constant in the past five years, Tribnia’s total coal production has doubled in that period of time.

B.Any individual Tribnian coal mine that achieved an increase in overall output in the past five years has also experienced an increase in output per miner.

C.If any new coal mines had opened in Tribnia in the past five years, then the increase in output per miner would have been even greater than it actually was.

D.If any individual Tribnian coal mine has not increased its output per miner in the past five years, then that mine’s overall output has declined or remained constant.

     E.   In Tribnia the cost of producing a given quantity of coal has declined over the past five years.

答案选的A      整道题的逻辑链和思路就没有理出来...求全套帮助...文章思路和解题思路，小女子谢过啦

xing727

前面回答过一个同样人的问题了，帮你再贴下自己理解思路

答案应该是A吧，原文说新科技能提高矿产量，即使新矿山没有被开采，平均每个工人的出产量也提升了两倍。文中提到的科技是个前提，而A变相符合了文中的结论，意思是保持原有工人的数量，总产量提升了2倍。因为total output= Q(工人）* output/person，所以output/person double的话，保持Q不变，total output变成2倍。B，C，D选项都是过度推理，E无关。

yqhpsyche

前面回答过一个同样人的问题了，帮你再贴下自己理解思路

答案应该是A吧，原文说新科技能提高矿产量，即使新矿山没有被开采，平均每个工人的出产量也提升了两倍。文中提到的科技是个前提，而A变相符合了文中的结论，意思是保持原有工人的数量，总产量提升了2倍。因为total output= Q(工人）* output/person，所以output/person double的话，保持Q不变，total output变成2倍。B，C，D选项都是过度推理，E无关。

-- by 会员 xing727 (2012/4/7 7:55:38)

谢谢~~明白啦~~