Technological improvements and reduced equipment costs have made converting
solar energy directly into electricity far more cost-efficient in the
last decade. However, the threshold of economic viability for solar power
(that is, the price per barrel to which oil would have to rise in order for
new solar power plants to be more economical than new oil-fired power plants)
is unchanged at thirty-five dollars.
Which of the following, if ture, does most to help explain why the increased
cost-efficiency of solar power has not decreased its threshold of economic
viability?
答案是C
Technological changes have increased the efficiency of oil-fired power plants
有哪位高手可以跟我解釋一下嗎
基本上我看不太懂這題
--
※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 61.57.64.49