The technology of nuclear fusion, known to ______ large amounts of energy, has been claimed to produce large quantities of cheap, clean energy, yet no country has so far succeeded in making it work.
(A) have released
(B) release
(C) releasing
(D) being released

答案：登入後查看
統計： A(27), B(185), C(51), D(24), E(0) #74821

詳解 (共 3 筆)

#377136
是否可想成
1) The technology of nuclear fusion is known to release large amounts of energy.
2)  The technology of nuclear fusion is known to releasing large amounts of energy. 
這兩個來選？
如果可，那因為沒有be known to Ving這種片語，通常be known to都是接「人」，意指『為某人所知』。
因此此句句意應斷在is known，後接不定詞to release。

僅供參考……
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0
#41958

why?
1
1
#442665
這題 known前面並沒有 is，只是單純考不定詞形態~
-1
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