谁能帮我做出这道题来啊,救命Oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well.Initially there were 2 million barrels of oil in the well; six years later 1,000,000 barrels remain.(a) At wha
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![谁能帮我做出这道题来啊,救命Oil is pumped continuously from a well at a rate proportional to the amount of oil left in the well.Initially there were 2 million barrels of oil in the well; six years later 1,000,000 barrels remain.(a) At wha](/uploads/image/z/5318525-29-5.jpg?t=%E8%B0%81%E8%83%BD%E5%B8%AE%E6%88%91%E5%81%9A%E5%87%BA%E8%BF%99%E9%81%93%E9%A2%98%E6%9D%A5%E5%95%8A%2C%E6%95%91%E5%91%BDOil+is+pumped+continuously+from+a+well+at+a+rate+proportional+to+the+amount+of+oil+left+in+the+well.Initially+there+were+2+million+barrels+of+oil+in+the+well%3B+six+years+later+1%2C000%2C000+barrels+remain.%28a%29+At+wha)
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