题目内容
As there is less and less coal and oil, scientists are exploring new ways of making use of energy, such as sunlight, wind and water for power and fuel
- A.primary
- B.alternative
- C.instant
- D.unique
B
Primary初等的;最初的;alternative可供替代的,可选择的;instant 立即的,即刻的; unique 单独一无二的,由常识可知,阳光、风力及水力都是不可能替代能源。
Primary初等的;最初的;alternative可供替代的,可选择的;instant 立即的,即刻的; unique 单独一无二的,由常识可知,阳光、风力及水力都是不可能替代能源。
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