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We all know that America was _____by Columbus while the electric lamp was ________ by Edison.

A. invented；discovered B. discovered；invented

C. found；invented D. found；discovered

B 【解析】 句意：我們都知道美洲大陸是哥倫布發(fā)現(xiàn)的，而電燈是愛迪生發(fā)明的。discover 是發(fā)現(xiàn)本來就存在的事物；invent是發(fā)明創(chuàng)造出一個原本沒有的新事物。find的基本意思是“發(fā)現(xiàn)，找到”，是指找到了所尋找的東西，知道了其下落，強調尋找的結果。結合句意可知，美洲大陸本來是存在的，而電燈是不存在的。故選B。
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