江苏省南通市2014
高考英语阅读理解、短文改错训练（2）（答案或解析） after years of research and testing, the hybrid car was developed and put on the market. it’ s an interesting and exciting new improvement in today’ s world as we look for better ways to protect the quality of the air we breathe and conserve our natural resources. the quality of our air is affected by many different things. but one of the largest sources of air pollution is the burning of fossil fuels such as coal and gasoline which is used to power
