問題詳情

20. The high speed rail system in China has experienced _____ growth which no otherinfrastructure programs in the world have ever seen so far.
(A) adequate
(B) prototypical
(C) unprecedented
(D) prolonged

參考答案

答案:C
難度:適中0.5
統計:A(0),B(0),C(2),D(0),E(0)

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