11. Since conscious patients often died of shock on the operating table, the invention of anesthesia was essential to the development of surgery as the invention of the propeller was to powered flight.
(A) the invention of anesthesia was essential to the development of surgery as the invention of the propeller was to powered flight
(B) inventing anesthesia was as essential for the development of surgery as the invention of the propeller was for powered flight
(C) the invention of anesthesia was as essential in the development of surgery much as the invention of the propeller had been for powered flight
(D) the invention of anesthesia was as essential to the development of surgery as the invention of the propeller was to powered flight(D)
(E) the invention of anesthesia was essential to the development of surgery, so was the invention of the propeller essential to powered flight
我一来就选成a了,看到答案时真是沮丧,发现涉及as的题经常做错。
后来翻了翻oxford,发现as的解释几乎占据整页,用法真是复杂:(
其中一条:in the way in which(introducing adverbial clauses of manner)eg. do it as i do it
用这条解释a不知道可不可以,麻烦nn指点指点, 我已经糊涂了
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