[题目]As there is less and less coal and oil, scientists are exploring new ways of making use of energy, such as sunlight and water for power and fuelA.primaryB.alternativeC.instantD.unique 题目和参考答案——青夏教育精英家教网—

题目内容

【题目】As there is less and less coal and oil, scientists are exploring new ways of making use of __________ energy, such as sunlight and water for power and fuel
A.primary
B.alternative
C.instant
D.unique

【答案】B
【解析】A．primary 首要的，初期的；B.alternativ有选择的，可替代的；C.instant立即的，迅速的；D.unique独特的,独一无二的；句意：既然煤和石油越来越少，科学家们正在研发新型的可替代的能源，如阳光和水。根据句意，故选B。

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