大学英语四级模拟练习题及答案

大学英语四级模拟练习题及答案 　　forever friend gets you through the hard times, the sad times, and the confused tim

大学英语四级模拟练习题及答案 forever friend gets you through the hard times, the sad times, and the confused times.以下是为大家搜索的大学模拟练 习题及答案，希望能给大家带来帮助!更多精彩内容请及时关注我 们! Abreakthrough (突破) in the provision of energy from the sun for the European Economic Community (EEC) could be brought froward by up to two decades, if amodest increase could be provided in the EEC’s researcheffort in this field, aording to the senior EEC scientists engaged in experiments in solar energy at EEC’s scientific laboratories at Ispra, near Milan. The senior West German scientist in charge of the Community’s solar energy programme, Mr. Joachim Gretz, told journalists that at present levels of research spending it was most unlikely that solar energy would provide as much as three per cent of the Community’s energy requirements even after the year 2000. But hesaid that with amodest increase in the present sums, devoted by the EEC to this work it was possible thatthe breakthrough could be achieved by the end of the next decade. Mr. Gretz calculates that if solar energy only provided three per cent of the EEC’s needs, this could still produce asaving of about abillion pounds in the present bill for imported energy each year. And he believes that