問題詳情

4. A: Why green buildings are so important?
B:________ 
(A) They are famous for their green design.
(B) Because they save the Earth’s natural resources.
(C) Because of the eco-friendly blackboards.
(D) All the cars will run on biogas by 2020.

參考答案

答案:B
難度:計算中-1
書單:沒有書單,新增

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