A recent study by the Center for Economic Policy Research says that, in order to ease imbalances, the European Union needs to ma

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问题 A recent study by the Center for Economic Policy Research says that, in order to ease imbalances, the European Union needs to make changes while the United States has to spend more and save less.
  
A recent study by the Center for Economic Policy Research, or CEPR, in London says the best way to ease imbalances would be for Asian governments, the United States and the European Union to coordinate policy. It says that while Asia needs to make changes, the US also has to save more and cut spending.
Some fuel or oil additives can be a problem for engines and fuel systems. Additives displace protective chemicals in gasoline and engine oil; some may corrode fuel pumps or gas tanks, or make flexible fuel hoses and fittings brittle. Instead of enhancing engine life and economy, users might shorten their car’s life.

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答案A

解析 掌握重点单词的词形变化形式是解题的关键。本题需掌握原文中displace及corrode在题干中词形变化为名词形式。
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