問題詳情

9. Before the ______ of anesthesia in the 1840s, invasive surgery was limited in scope; lengthy operationsor ones demanding great precision were out of the question.
(A) introduction
(B) interrogation
(C) interspersion
(D) illusion

參考答案

答案:A
難度:困難0.25
統計:A(3),B(2),C(1),D(1),E(0)

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