17. Quinine, _______ used to cure malaria, was isolated from the bark of a cinchona.
(A) is a famous drug
(B) is a famous drug whose
(C) a famous drug
(D) it is a famous drug

答案：登入後查看
統計： A(17), B(21), C(391), D(6), E(0) #1280290

詳解 (共 1 筆)

#4877244

先還原成關係子句的樣子 Quinine, which is a famous drug
減化後則是 Quinine, a famous drug
(used to cure malaria 是減化後的關係子句，修飾a famous drug，可直接無視)

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