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- 共用题干 You Need Courage!Shortly after I began a career in business,I learned that Carl Weatherup,pres...
- He was tempted by the high salary offered by the company.
- 共用题干 Global WarmingFew people now question the reality of global warming and its effects on the wor...
- 共用题干 Learn about Light1 .Ancient civilizations were amazed by the existence of light for thousands ...
- 共用题干 Where Has the Salt Come from?Every now and then,we meet a fact about our earth that makes us f...
- 共用题干 High-Tech Warfare（战争）Today,high-tech warfare is no longer an abstract concept,but a real issue...
- 共用题干 Germs（细菌）on BanknotesPeople in different countries use different types of money:yuan in China,...
- 共用题干 Pop Music in AfricaYoung musicians in African countries are creating a new kind of pop music. ...
- 共用题干 “Liquefaction” Key to Much of Japanese Earthquake DamageThe massive subduction zone earthquake...
- 共用题干 Ecosystem1. The word “ecosystem” is short for ecological（生态的）system. An ecosystem is where liv...