16. ____ a solution to the problem of a future energy shortage, but it also helps to eliminate environmental pollution.
(A) The new energy source provides
(B) The new energy source provides not only
(C) Not only the new energy source provides 
(D) Not only does the new energy source provide

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統計： A(1), B(16), C(28), D(62), E(0) #2406756

詳解 (共 3 筆)

#4207147
倒裝 be+V 助v+主+v has+主...
(共 153 字，隱藏中）
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#4204721
Not only does the ne...
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#6122160
若選(B)，句子需要改成
The new energy source provides not only a solution to the problem of a future energy shortage, but it also helps to an elimination of environmental pollution.
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