國文屋

位置:首頁 > 練習題 > 

 Scientistshavefound

練習題3.12W

問題詳情:

 Scientistshavefound

 Scientists have found ____________ for oil as fuel. Coal, natural gas, solar power, nuclear power and even water can replace it as sources of energy.

       A. consequences           B. substitutes                C. requirements                    D. contrasts

【回答】

B

知識點:名詞

題型:選擇題