問題詳情

25. It is evidence that solar energy either is now economically competitivewith conventional sources of heat or will be so within a few years.
(A) It is
(B)economically competitive
(C)or will be
(D)so

參考答案

答案:A
難度:適中0.45
書單:沒有書單,新增

用户評論

應屆上岸~台北台中台南都正】評論

應該是考evidence的慣用法? 查Cambridge大多是用there is evidence、There is no evidence、There is little evidence相關文章討論區