101高考英文第45題--關於"by which" - 高考

Only a few years later, the Dutch scientist Anton van Leeuwenhoek performed

pioneering research with the microscope, discovering among other things that

weevils, fleas, and other minute creatures come from eggs rather than being

spontaneously generated. Not long after this, William Harvey, an English

physician, discovered the method __45__ which blood circulates in humans and

other animals and in 1628 published his findings in the historic treatise

“On the Motion of the Heart and Blood in Animals.”


(A)on (B)to (C)at (D)by

答案是:(D)by

這句話的意思是說這個人發現了一種方法來做某些事，對吧?

但是用來做什麼事? by which後面的"blood circulates in humans and and other

animals"這整個性質上不是一個名詞嗎?(或是叫名詞子句)這樣的話，前面不是應該有

個動詞嗎?像是observe(觀察)之類的動詞。也就是藉這種方法觀察血液循環

或是我理解錯誤，其實這句話不是這個意思?

另外，還請順便幫忙翻譯一下這句話

真的很謝謝能解答的人，謝謝~!

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