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- 共用题干 Giant StructuresIt is an impossible task to select the most amazing wonders of the modern worl...
- We derive information mainly from the Internet.
- 共用题干 Robots May Allow Surgery in SpaceSmall robots designed by University of Nebraska researchers m...
- 共用题干 Germs（细菌）on BanknotesPeople in different countries use different types of money:yuan in China,...
- The weather was crisp and clear and you could see the mountains fifty miles away.
- 共用题干 Free Statins with Fast Food could Neutralize Heart RiskFast food outlets could provide statin ...
- 共用题干 “Lucky” Lord Lucan一Alive or DeadOn 8th November 1974 Lord Lucan,a British aristocrat,vanished....
- 共用题干 “Liquefaction” Key to Much of Japanese Earthquake DamageThe massive subduction zone earthquake...
- 共用题干 Cloning（克隆）:Future Pertect?1 A clone is an exact copy of a plant or animal produced from any ...
- 共用题干 Sharks Perform a Service for Earths WatersIt is hard to get people to think of sharks as anyth...