问一道PPII-1 三空题hard

fm_smileUID: 2528707

Higher energy prices would have many (i) ______ effects on society as a whole. Besides encouraging consumers to be more (ii) ______ in their use of gasoline, they would encourage the development of renewable alternative energy sources that are not (iii) ______ at current prices.

Blank (i)
(A) pernicious
(B) counterintuitive
(C) salubrious

Blank (ii)
(D) aggressive
(E) predictable  
(F) sparing

Blank (iii)
(G) unstable
(H) adaptable  
(I) viable

第三个空，正确答案是I，我选的H。求解答。。。

fm_smileUID: 2528707

为什么viable 比 adaptable在这里更适合？

战国英雄UID: 2489149

能源价格高导致新能源不可用，不可行，利用率低，而不适应在这里意思就对不上了啊

fm_smileUID: 2528707

战国英雄 发表于 2014-8-5 23:02
能源价格高导致新能源不可用，不可行，利用率低，而不适应在这里意思就对不上了啊

我把适应理解为适用了~~